102021012321132 has 96 divisors (see below), whose sum is σ = 247748530014720. Its totient is φ = 32635586188800.

The previous prime is 102021012321121. The next prime is 102021012321211. The reversal of 102021012321132 is 231123210120201.

It is a super-2 number, since 2×102021012321132² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102021012321099 and 102021012321108.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1044702507 + ... + 1044800157.

It is an arithmetic number, because the mean of its divisors is an integer number (2580713854320).

Almost surely, 2^{102021012321132} is an apocalyptic number.

102021012321132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102021012321132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123874265007360).

102021012321132 is an abundant number, since it is smaller than the sum of its proper divisors (145727517693588).

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

102021012321132 is a wasteful number, since it uses less digits than its factorization.

102021012321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115831 (or 115829 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 102021012321132 its reverse (231123210120201), we get a palindrome (333144222441333).

The spelling of 102021012321132 in words is "one hundred two trillion, twenty-one billion, twelve million, three hundred twenty-one thousand, one hundred thirty-two".