1013311031 has 4 divisors (see below), whose sum is σ = 1017736200. Its totient is φ = 1008885864.

The previous prime is 1013311007. The next prime is 1013311037. The reversal of 1013311031 is 1301133101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013311031 is a prime.

It is a super-2 number, since 2×1013311031² = 2053598491092565922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013310997 and 1013311015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013311037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212241 + ... + 2212698.

It is an arithmetic number, because the mean of its divisors is an integer number (254434050).

Almost surely, 2^1013311031 is an apocalyptic number.

1013311031 is a deficient number, since it is larger than the sum of its proper divisors (4425169).

1013311031 is an equidigital number, since it uses as much as digits as its factorization.

1013311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425168.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1013311031 is about 31832.5467250109. The cubic root of 1013311031 is about 1004.4174675793.

Adding to 1013311031 its reverse (1301133101), we get a palindrome (2314444132).

The spelling of 1013311031 in words is "one billion, thirteen million, three hundred eleven thousand, thirty-one".