1201522023 has 24 divisors (see below), whose sum is σ = 1870989120. Its totient is φ = 738624960.

The previous prime is 1201522013. The next prime is 1201522033. The reversal of 1201522023 is 3202251021.

1201522023 is a `hidden beast` number, since 120 + 1 + 522 + 0 + 23 = 666.

It is an interprime number because it is at equal distance from previous prime (1201522013) and next prime (1201522033).

It is not a de Polignac number, because 1201522023 - 2¹⁷ = 1201390951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201521987 and 1201522005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201522013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119298 + ... + 128976.

It is an arithmetic number, because the mean of its divisors is an integer number (77957880).

Almost surely, 2^1201522023 is an apocalyptic number.

1201522023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201522023 is a deficient number, since it is larger than the sum of its proper divisors (669467097).

1201522023 is a wasteful number, since it uses less digits than its factorization.

1201522023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10759 (or 10756 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1201522023 is about 34662.9776995572. The cubic root of 1201522023 is about 1063.1076545875.

Adding to 1201522023 its reverse (3202251021), we get a palindrome (4403773044).

The spelling of 1201522023 in words is "one billion, two hundred one million, five hundred twenty-two thousand, twenty-three".