1201144231 has 16 divisors (see below), whose sum is σ = 1460035584. Its totient is φ = 964623744.

The previous prime is 1201144213. The next prime is 1201144253. The reversal of 1201144231 is 1324411021.

It is not a de Polignac number, because 1201144231 - 2¹⁹ = 1200619943 is a prime.

It is a super-2 number, since 2×1201144231² = 2885494927329162722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201144199 and 1201144208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201144201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3906 + ... + 49168.

It is an arithmetic number, because the mean of its divisors is an integer number (91252224).

Almost surely, 2^1201144231 is an apocalyptic number.

1201144231 is a deficient number, since it is larger than the sum of its proper divisors (258891353).

1201144231 is a wasteful number, since it uses less digits than its factorization.

1201144231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45510.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1201144231 is about 34657.5277681487. The cubic root of 1201144231 is about 1062.9962193519.

Adding to 1201144231 its reverse (1324411021), we get a palindrome (2525555252).

The spelling of 1201144231 in words is "one billion, two hundred one million, one hundred forty-four thousand, two hundred thirty-one".