101220031232 has 36 divisors (see below), whose sum is σ = 202494889800. Its totient is φ = 50497241088.

The previous prime is 101220031217. The next prime is 101220031247. The reversal of 101220031232 is 232130022101.

It is an interprime number because it is at equal distance from previous prime (101220031217) and next prime (101220031247).

It is a self number, because there is not a number n which added to its sum of digits gives 101220031232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325358 + ... + 555245.

It is an arithmetic number, because the mean of its divisors is an integer number (5624858050).

Almost surely, 2^101220031232 is an apocalyptic number.

It is an amenable number.

101220031232 is an abundant number, since it is smaller than the sum of its proper divisors (101274858568).

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

101220031232 is an frugal number, since it uses more digits than its factorization.

101220031232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881068 (or 881054 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 101220031232 its reverse (232130022101), we get a palindrome (333350053333).

The spelling of 101220031232 in words is "one hundred one billion, two hundred twenty million, thirty-one thousand, two hundred thirty-two".