11012002031 has 12 divisors (see below), whose sum is σ = 11518901520. Its totient is φ = 10526540640.

The previous prime is 11012001997. The next prime is 11012002073. The reversal of 11012002031 is 13020021011.

It is a de Polignac number, because none of the positive numbers 2^k-11012002031 is a prime.

It is a super-2 number, since 2×11012002031² (a number of 21 digits) 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 (11012002531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 962915 + ... + 974283.

It is an arithmetic number, because the mean of its divisors is an integer number (959908460).

Almost surely, 2^11012002031 is an apocalyptic number.

11012002031 is a deficient number, since it is larger than the sum of its proper divisors (506899489).

11012002031 is a wasteful number, since it uses less digits than its factorization.

11012002031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13246 (or 13223 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11012002031 its reverse (13020021011), we get a palindrome (24032023042).

The spelling of 11012002031 in words is "eleven billion, twelve million, two thousand, thirty-one".