1013320431 has 12 divisors (see below), whose sum is σ = 1464811920. Its totient is φ = 675026880.

The previous prime is 1013320391. The next prime is 1013320487. The reversal of 1013320431 is 1340233101.

It is not a de Polignac number, because 1013320431 - 2¹⁵ = 1013287663 is a prime.

It is a super-2 number, since 2×1013320431² = 2053636591764051522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013320031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30810 + ... + 54551.

It is an arithmetic number, because the mean of its divisors is an integer number (122067660).

Almost surely, 2^1013320431 is an apocalyptic number.

1013320431 is a deficient number, since it is larger than the sum of its proper divisors (451491489).

1013320431 is a wasteful number, since it uses less digits than its factorization.

1013320431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86686 (or 86683 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1013320431 is about 31832.6943722959. The cubic root of 1013320431 is about 1004.4205734026.

Adding to 1013320431 its reverse (1340233101), we get a palindrome (2353553532).

The spelling of 1013320431 in words is "one billion, thirteen million, three hundred twenty thousand, four hundred thirty-one".