102420420552120 has 64 divisors (see below), whose sum is σ = 335194103629440. Its totient is φ = 24829192860800.

The previous prime is 102420420552103. The next prime is 102420420552133. The reversal of 102420420552120 is 21255024024201.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38795612526 + ... + 38795615165.

It is an arithmetic number, because the mean of its divisors is an integer number (5237407869210).

Almost surely, 2^{102420420552120} is an apocalyptic number.

102420420552120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102420420552120 is an abundant number, since it is smaller than the sum of its proper divisors (232773683077320).

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

102420420552120 is a wasteful number, since it uses less digits than its factorization.

102420420552120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77591227716 (or 77591227712 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 102420420552120 its reverse (21255024024201), we get a palindrome (123675444576321).

The spelling of 102420420552120 in words is "one hundred two trillion, four hundred twenty billion, four hundred twenty million, five hundred fifty-two thousand, one hundred twenty".