102501421002399 has 4 divisors (see below), whose sum is σ = 136668561336536. Its totient is φ = 68334280668264.

The previous prime is 102501421002391. The next prime is 102501421002457. The reversal of 102501421002399 is 993200124105201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102501421002399 - 2³ = 102501421002391 is a prime.

It is a super-2 number, since 2×102501421002399² (a number of 29 digits) contains 22 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 (102501421002391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17083570167064 + ... + 17083570167069.

It is an arithmetic number, because the mean of its divisors is an integer number (34167140334134).

Almost surely, 2^{102501421002399} is an apocalyptic number.

102501421002399 is a deficient number, since it is larger than the sum of its proper divisors (34167140334137).

102501421002399 is an equidigital number, since it uses as much as digits as its factorization.

102501421002399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34167140334136.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 102501421002399 in words is "one hundred two trillion, five hundred one billion, four hundred twenty-one million, two thousand, three hundred ninety-nine".