102342020031 has 24 divisors (see below), whose sum is σ = 150367052160. Its totient is φ = 67056374736.

The previous prime is 102342020029. The next prime is 102342020047. The reversal of 102342020031 is 130020243201.

102342020031 is a `hidden beast` number, since 10 + 2 + 3 + 420 + 200 + 31 = 666.

It is not a de Polignac number, because 102342020031 - 2¹ = 102342020029 is a prime.

It is a super-2 number, since 2×102342020031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102342019986 and 102342020013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102342020051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2618076 + ... + 2656878.

It is an arithmetic number, because the mean of its divisors is an integer number (6265293840).

Almost surely, 2^102342020031 is an apocalyptic number.

102342020031 is a deficient number, since it is larger than the sum of its proper divisors (48025032129).

102342020031 is a wasteful number, since it uses less digits than its factorization.

102342020031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43835 (or 43832 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 102342020031 its reverse (130020243201), we get a palindrome (232362263232).

The spelling of 102342020031 in words is "one hundred two billion, three hundred forty-two million, twenty thousand, thirty-one".