102001230023220 has 72 divisors (see below), whose sum is σ = 337531342992480. Its totient is φ = 24727570914240.

The previous prime is 102001230023201. The next prime is 102001230023261. The reversal of 102001230023220 is 22320032100201.

102001230023220 is a `hidden beast` number, since 1 + 0 + 200 + 1 + 230 + 0 + 232 + 2 + 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 = 102001230023193 and 102001230023202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25757884390 + ... + 25757888349.

It is an arithmetic number, because the mean of its divisors is an integer number (4687935319340).

Almost surely, 2^{102001230023220} is an apocalyptic number.

102001230023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001230023220 is an abundant number, since it is smaller than the sum of its proper divisors (235530112969260).

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

102001230023220 is a wasteful number, since it uses less digits than its factorization.

102001230023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51515772765 (or 51515772760 counting only the distinct ones).

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

Adding to 102001230023220 its reverse (22320032100201), we get a palindrome (124321262123421).

The spelling of 102001230023220 in words is "one hundred two trillion, one billion, two hundred thirty million, twenty-three thousand, two hundred twenty".