102124402020 has 48 divisors (see below), whose sum is σ = 317720363520. Its totient is φ = 27233173728.

The previous prime is 102124401997. The next prime is 102124402021. The reversal of 102124402020 is 20204421201.

102124402020 is a `hidden beast` number, since 1 + 0 + 21 + 2 + 440 + 202 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102124401984 and 102124402002.

It is not an unprimeable number, because it can be changed into a prime (102124402021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94559092 + ... + 94560171.

It is an arithmetic number, because the mean of its divisors is an integer number (6619174240).

Almost surely, 2^102124402020 is an apocalyptic number.

102124402020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102124402020 is an abundant number, since it is smaller than the sum of its proper divisors (215595961500).

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

102124402020 is a wasteful number, since it uses less digits than its factorization.

102124402020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189119281 (or 189119273 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 102124402020 its reverse (20204421201), we get a palindrome (122328823221).

The spelling of 102124402020 in words is "one hundred two billion, one hundred twenty-four million, four hundred two thousand, twenty".