21013144131012 has 48 divisors (see below), whose sum is σ = 53498852193024. Its totient is φ = 6366327892000.

The previous prime is 21013144130983. The next prime is 21013144131013.

21013144131012 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (21013144131013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15490914 + ... + 16792697.

It is an arithmetic number, because the mean of its divisors is an integer number (1114559420688).

Almost surely, 2^{21013144131012} is an apocalyptic number.

21013144131012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21013144131012 is an abundant number, since it is smaller than the sum of its proper divisors (32485708062012).

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

21013144131012 is a wasteful number, since it uses less digits than its factorization.

21013144131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32288560 (or 32288558 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

It can be divided in two parts, 2101314 and 4131012, that added together give a palindrome (6232326).

The spelling of 21013144131012 in words is "twenty-one trillion, thirteen billion, one hundred forty-four million, one hundred thirty-one thousand, twelve".