102250453555421 has 4 divisors (see below), whose sum is σ = 102494488051200. Its totient is φ = 102006419059644.

The previous prime is 102250453555363. The next prime is 102250453555427. The reversal of 102250453555421 is 124555354052201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102250453555421 - 2²² = 102250449361117 is a prime.

It is a super-3 number, since 3×102250453555421³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102250453555427) 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 3 ways as a sum of consecutive naturals, for example, 122017247261 + ... + 122017248098.

It is an arithmetic number, because the mean of its divisors is an integer number (25623622012800).

Almost surely, 2^{102250453555421} is an apocalyptic number.

It is an amenable number.

102250453555421 is a deficient number, since it is larger than the sum of its proper divisors (244034495779).

102250453555421 is an equidigital number, since it uses as much as digits as its factorization.

102250453555421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244034495778.

The product of its (nonzero) digits is 1200000, while the sum is 44.

The spelling of 102250453555421 in words is "one hundred two trillion, two hundred fifty billion, four hundred fifty-three million, five hundred fifty-five thousand, four hundred twenty-one".