1313232031 has 8 divisors (see below), whose sum is σ = 1391632704. Its totient is φ = 1234959360.

The previous prime is 1313232017. The next prime is 1313232097. The reversal of 1313232031 is 1302323131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313232031 - 2⁵ = 1313231999 is a prime.

It is a super-2 number, since 2×1313232031² = 3449156734488769922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313232631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10450 + ... + 52303.

It is an arithmetic number, because the mean of its divisors is an integer number (173954088).

Almost surely, 2^1313232031 is an apocalyptic number.

1313232031 is a deficient number, since it is larger than the sum of its proper divisors (78400673).

1313232031 is a wasteful number, since it uses less digits than its factorization.

1313232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64001.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1313232031 is about 36238.5434447909. The cubic root of 1313232031 is about 1095.0832991266.

Adding to 1313232031 its reverse (1302323131), we get a palindrome (2615555162).

The spelling of 1313232031 in words is "one billion, three hundred thirteen million, two hundred thirty-two thousand, thirty-one".