21133102023 has 12 divisors (see below), whose sum is σ = 33300645768. Its totient is φ = 12807940560.

The previous prime is 21133102009. The next prime is 21133102037. The reversal of 21133102023 is 32020133112.

It is an interprime number because it is at equal distance from previous prime (21133102009) and next prime (21133102037).

It is not a de Polignac number, because 21133102023 - 2⁵ = 21133101991 is a prime.

It is a super-2 number, since 2×21133102023² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21133101987 and 21133102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133102063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106732740 + ... + 106732937.

It is an arithmetic number, because the mean of its divisors is an integer number (2775053814).

Almost surely, 2^21133102023 is an apocalyptic number.

21133102023 is a deficient number, since it is larger than the sum of its proper divisors (12167543745).

21133102023 is a wasteful number, since it uses less digits than its factorization.

21133102023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213465694 (or 213465691 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21133102023 its reverse (32020133112), we get a palindrome (53153235135).

The spelling of 21133102023 in words is "twenty-one billion, one hundred thirty-three million, one hundred two thousand, twenty-three".