101630571972 has 24 divisors (see below), whose sum is σ = 237167616000. Its totient is φ = 33872626656.

The previous prime is 101630571947. The next prime is 101630571979. The reversal of 101630571972 is 279175036101.

It is not an unprimeable number, because it can be changed into a prime (101630571979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427972 + ... + 621627.

It is an arithmetic number, because the mean of its divisors is an integer number (9881984000).

Almost surely, 2^101630571972 is an apocalyptic number.

101630571972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101630571972 is an abundant number, since it is smaller than the sum of its proper divisors (135537044028).

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

101630571972 is a wasteful number, since it uses less digits than its factorization.

101630571972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057675 (or 1057673 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 42.

The spelling of 101630571972 in words is "one hundred one billion, six hundred thirty million, five hundred seventy-one thousand, nine hundred seventy-two".