102121220303431 has 8 divisors (see below), whose sum is σ = 116710578888224. Its totient is φ = 87532014925440.

The previous prime is 102121220303407. The next prime is 102121220303447. The reversal of 102121220303431 is 134303022121201.

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

It is a cyclic number.

It is not a de Polignac number, because 102121220303431 - 2⁷ = 102121220303303 is a prime.

It is a super-2 number, since 2×102121220303431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102121220303396 and 102121220303405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121220303461) 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, 36869790 + ... + 39542683.

It is an arithmetic number, because the mean of its divisors is an integer number (14588822361028).

Almost surely, 2^{102121220303431} is an apocalyptic number.

102121220303431 is a deficient number, since it is larger than the sum of its proper divisors (14589358584793).

102121220303431 is an equidigital number, since it uses as much as digits as its factorization.

102121220303431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76603401.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 102121220303431 its reverse (134303022121201), we get a palindrome (236424242424632).

The spelling of 102121220303431 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twenty million, three hundred three thousand, four hundred thirty-one".