21011230013196 has 24 divisors (see below), whose sum is σ = 49152234746160. Its totient is φ = 6985738854592.

The previous prime is 21011230013149. The next prime is 21011230013197. The reversal of 21011230013196 is 69131003211012.

It is not an unprimeable number, because it can be changed into a prime (21011230013197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2250555531 + ... + 2250564866.

It is an arithmetic number, because the mean of its divisors is an integer number (2048009781090).

Almost surely, 2^{21011230013196} is an apocalyptic number.

It is an amenable number.

21011230013196 is an abundant number, since it is smaller than the sum of its proper divisors (28141004732964).

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

21011230013196 is a wasteful number, since it uses less digits than its factorization.

21011230013196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501120793 (or 4501120791 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The spelling of 21011230013196 in words is "twenty-one trillion, eleven billion, two hundred thirty million, thirteen thousand, one hundred ninety-six".