21402023313100 has 36 divisors (see below), whose sum is σ = 48043852340400. Its totient is φ = 8265609002560.

The previous prime is 21402023313029. The next prime is 21402023313101. The reversal of 21402023313100 is 131332020412.

It is a super-2 number, since 2×21402023313100² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21402023313101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3690001120 + ... + 3690006919.

It is an arithmetic number, because the mean of its divisors is an integer number (1334551453900).

Almost surely, 2^{21402023313100} is an apocalyptic number.

21402023313100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21402023313100 is an abundant number, since it is smaller than the sum of its proper divisors (26641829027300).

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

21402023313100 is a wasteful number, since it uses less digits than its factorization.

21402023313100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380008082 (or 7380008075 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21402023313100 its reverse (131332020412), we get a palindrome (21533355333512).

The spelling of 21402023313100 in words is "twenty-one trillion, four hundred two billion, twenty-three million, three hundred thirteen thousand, one hundred".