1012023345 has 32 divisors (see below), whose sum is σ = 1789039872. Its totient is φ = 485906432.

The previous prime is 1012023343. The next prime is 1012023359. The reversal of 1012023345 is 5433202101.

It is a cyclic number.

It is not a de Polignac number, because 1012023345 - 2¹ = 1012023343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012023343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80412 + ... + 92141.

It is an arithmetic number, because the mean of its divisors is an integer number (55907496).

Almost surely, 2^1012023345 is an apocalyptic number.

1012023345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012023345 is a deficient number, since it is larger than the sum of its proper divisors (777016527).

1012023345 is a wasteful number, since it uses less digits than its factorization.

1012023345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172601.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1012023345 is about 31812.3143609515. The cubic root of 1012023345 is about 1003.9918257907.

Adding to 1012023345 its reverse (5433202101), we get a palindrome (6445225446).

The spelling of 1012023345 in words is "one billion, twelve million, twenty-three thousand, three hundred forty-five".