11203121123112 has 96 divisors (see below), whose sum is σ = 30819451370400. Its totient is φ = 3384009053568.

The previous prime is 11203121123087. The next prime is 11203121123137. The reversal of 11203121123112 is 21132112130211.

It is an interprime number because it is at equal distance from previous prime (11203121123087) and next prime (11203121123137).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22980183 + ... + 23462630.

It is an arithmetic number, because the mean of its divisors is an integer number (321035951775).

Almost surely, 2^{11203121123112} is an apocalyptic number.

11203121123112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11203121123112 is an abundant number, since it is smaller than the sum of its proper divisors (19616330247288).

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

11203121123112 is a wasteful number, since it uses less digits than its factorization.

11203121123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46442887 (or 46442860 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 11203121123112 its reverse (21132112130211), we get a palindrome (32335233253323).

The spelling of 11203121123112 in words is "eleven trillion, two hundred three billion, one hundred twenty-one million, one hundred twenty-three thousand, one hundred twelve".