102321211130020 has 48 divisors (see below), whose sum is σ = 226186693689600. Its totient is φ = 38773845607680.

The previous prime is 102321211130011. The next prime is 102321211130029. The reversal of 102321211130020 is 20031112123201.

It is an interprime number because it is at equal distance from previous prime (102321211130011) and next prime (102321211130029).

It is a super-2 number, since 2×102321211130020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 102321211130020.

It is not an unprimeable number, because it can be changed into a prime (102321211130029) 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, 27930421 + ... + 31380739.

It is an arithmetic number, because the mean of its divisors is an integer number (4712222785200).

Almost surely, 2^{102321211130020} is an apocalyptic number.

102321211130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102321211130020 is an abundant number, since it is smaller than the sum of its proper divisors (123865482559580).

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

102321211130020 is a wasteful number, since it uses less digits than its factorization.

102321211130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528388 (or 3528386 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102321211130020 its reverse (20031112123201), we get a palindrome (122352323253221).

The spelling of 102321211130020 in words is "one hundred two trillion, three hundred twenty-one billion, two hundred eleven million, one hundred thirty thousand, twenty".