101909472931 has 8 divisors (see below), whose sum is σ = 117668670560. Its totient is φ = 86450450688.

The previous prime is 101909472887. The next prime is 101909472961. The reversal of 101909472931 is 139274909101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101909472931 - 2⁹ = 101909472419 is a prime.

It is a super-2 number, since 2×101909472931² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101909472961) 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, 75043116 + ... + 75044473.

It is an arithmetic number, because the mean of its divisors is an integer number (14708583820).

Almost surely, 2^101909472931 is an apocalyptic number.

101909472931 is a deficient number, since it is larger than the sum of its proper divisors (15759197629).

101909472931 is an equidigital number, since it uses as much as digits as its factorization.

101909472931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150087693.

The product of its (nonzero) digits is 122472, while the sum is 46.

It can be divided in two parts, 1019094 and 72931, that added together give a square (1092025 = 1045²).

The spelling of 101909472931 in words is "one hundred one billion, nine hundred nine million, four hundred seventy-two thousand, nine hundred thirty-one".