102123032020 has 24 divisors (see below), whose sum is σ = 216462655584. Its totient is φ = 40467443616.

The previous prime is 102123032017. The next prime is 102123032041. The reversal of 102123032020 is 20230321201.

It is a super-2 number, since 2×102123032020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102123031985 and 102123032003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23858382 + ... + 23862661.

It is an arithmetic number, because the mean of its divisors is an integer number (9019277316).

Almost surely, 2^102123032020 is an apocalyptic number.

102123032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102123032020 is an abundant number, since it is smaller than the sum of its proper divisors (114339623564).

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

102123032020 is a wasteful number, since it uses less digits than its factorization.

102123032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47721159 (or 47721157 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 102123032020 its reverse (20230321201), we get a palindrome (122353353221).

The spelling of 102123032020 in words is "one hundred two billion, one hundred twenty-three million, thirty-two thousand, twenty".