1012311045 has 24 divisors (see below), whose sum is σ = 1811277312. Its totient is φ = 522482400.

The previous prime is 1012311023. The next prime is 1012311103. The reversal of 1012311045 is 5401132101.

It is not a de Polignac number, because 1012311045 - 2¹⁰ = 1012310021 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 361441 + ... + 364230.

It is an arithmetic number, because the mean of its divisors is an integer number (75469888).

Almost surely, 2^1012311045 is an apocalyptic number.

1012311045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012311045 is a deficient number, since it is larger than the sum of its proper divisors (798966267).

1012311045 is a wasteful number, since it uses less digits than its factorization.

1012311045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725713 (or 725710 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1012311045 is about 31816.8358734806. The cubic root of 1012311045 is about 1004.0869557046.

Adding to 1012311045 its reverse (5401132101), we get a palindrome (6413443146).

The spelling of 1012311045 in words is "one billion, twelve million, three hundred eleven thousand, forty-five".