1031323011 has 16 divisors (see below), whose sum is σ = 1403344800. Its totient is φ = 673567488.

The previous prime is 1031322997. The next prime is 1031323039. The reversal of 1031323011 is 1103231301.

It is not a de Polignac number, because 1031323011 - 2⁶ = 1031322947 is a prime.

It is a super-2 number, since 2×1031323011² = 2127254306036212242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1031323081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11385 + ... + 46821.

It is an arithmetic number, because the mean of its divisors is an integer number (87709050).

Almost surely, 2^1031323011 is an apocalyptic number.

1031323011 is a deficient number, since it is larger than the sum of its proper divisors (372021789).

1031323011 is a wasteful number, since it uses less digits than its factorization.

1031323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35638.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1031323011 is about 32114.2182062712. The cubic root of 1031323011 is about 1010.3338474192. Note that the first 3 decimals are identical.

Adding to 1031323011 its reverse (1103231301), we get a palindrome (2134554312).

The spelling of 1031323011 in words is "one billion, thirty-one million, three hundred twenty-three thousand, eleven".