21100310233013 has 16 divisors (see below), whose sum is σ = 24378604012224. Its totient is φ = 18049257557760.

The previous prime is 21100310232949. The next prime is 21100310233019. The reversal of 21100310233013 is 31033201300112.

It is not a de Polignac number, because 21100310233013 - 2⁶ = 21100310232949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100310233019) 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, 13256870 + ... + 14762967.

It is an arithmetic number, because the mean of its divisors is an integer number (1523662750764).

Almost surely, 2^{21100310233013} is an apocalyptic number.

It is an amenable number.

21100310233013 is a deficient number, since it is larger than the sum of its proper divisors (3278293779211).

21100310233013 is a wasteful number, since it uses less digits than its factorization.

21100310233013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28023892.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21100310233013 its reverse (31033201300112), we get a palindrome (52133511533125).

The spelling of 21100310233013 in words is "twenty-one trillion, one hundred billion, three hundred ten million, two hundred thirty-three thousand, thirteen".