11003031012 has 24 divisors (see below), whose sum is σ = 25702905312. Its totient is φ = 3663510400.

The previous prime is 11003031007. The next prime is 11003031079. The reversal of 11003031012 is 21013030011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509814 + ... + 530957.

It is an arithmetic number, because the mean of its divisors is an integer number (1070954388).

Almost surely, 2^11003031012 is an apocalyptic number.

11003031012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11003031012 is an abundant number, since it is smaller than the sum of its proper divisors (14699874300).

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

11003031012 is a wasteful number, since it uses less digits than its factorization.

11003031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041659 (or 1041657 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 11003031012 its reverse (21013030011), we get a palindrome (32016061023).

The spelling of 11003031012 in words is "eleven billion, three million, thirty-one thousand, twelve".