100021032312 has 64 divisors (see below), whose sum is σ = 264912469920. Its totient is φ = 31361261568.

The previous prime is 100021032301. The next prime is 100021032341. The reversal of 100021032312 is 213230120001.

It is a junction number, because it is equal to n+sod(n) for n = 100021032291 and 100021032300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656038 + ... + 793994.

Almost surely, 2^100021032312 is an apocalyptic number.

100021032312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100021032312 is an abundant number, since it is smaller than the sum of its proper divisors (164891437608).

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

100021032312 is a wasteful number, since it uses less digits than its factorization.

100021032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139760 (or 139756 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100021032312 its reverse (213230120001), we get a palindrome (313251152313).

The spelling of 100021032312 in words is "one hundred billion, twenty-one million, thirty-two thousand, three hundred twelve".