11203031000 has 64 divisors (see below), whose sum is σ = 29960124480. Its totient is φ = 3841036800.

The previous prime is 11203030997. The next prime is 11203031011. The reversal of 11203031000 is 13030211.

It is a super-2 number, since 2×11203031000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 793217 + ... + 807216.

It is an arithmetic number, because the mean of its divisors is an integer number (468126945).

Almost surely, 2^11203031000 is an apocalyptic number.

11203031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11203031000 is an abundant number, since it is smaller than the sum of its proper divisors (18757093480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11203031000 is a wasteful number, since it uses less digits than its factorization.

11203031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600461 (or 1600447 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 11203031000 its reverse (13030211), we get a palindrome (11216061211).

The spelling of 11203031000 in words is "eleven billion, two hundred three million, thirty-one thousand".