102021212123131 has 8 divisors (see below), whose sum is σ = 116606225596160. Its totient is φ = 87438837299688.

The previous prime is 102021212123113. The next prime is 102021212123141. The reversal of 102021212123131 is 131321212120201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102021212123131 - 2⁷ = 102021212123003 is a prime.

It is a super-2 number, since 2×102021212123131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102021212123141) 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 7 ways as a sum of consecutive naturals, for example, 659579541 + ... + 659734198.

It is an arithmetic number, because the mean of its divisors is an integer number (14575778199520).

Almost surely, 2^{102021212123131} is an apocalyptic number.

102021212123131 is a deficient number, since it is larger than the sum of its proper divisors (14585013473029).

102021212123131 is a wasteful number, since it uses less digits than its factorization.

102021212123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319324793.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 102021212123131 its reverse (131321212120201), we get a palindrome (233342424243332).

The spelling of 102021212123131 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, one hundred twenty-three thousand, one hundred thirty-one".