101931404 has 12 divisors (see below), whose sum is σ = 184531200. Its totient is φ = 49208208.

The previous prime is 101931397. The next prime is 101931407. The reversal of 101931404 is 404139101.

It is a super-2 number, since 2×101931404² = 20780022242822432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101931404.

It is not an unprimeable number, because it can be changed into a prime (101931407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439244 + ... + 439475.

It is an arithmetic number, because the mean of its divisors is an integer number (15377600).

Almost surely, 2^101931404 is an apocalyptic number.

It is an amenable number.

101931404 is a deficient number, since it is larger than the sum of its proper divisors (82599796).

101931404 is a wasteful number, since it uses less digits than its factorization.

101931404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878752 (or 878750 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 101931404 is about 10096.1083591649. The cubic root of 101931404 is about 467.1281097847.

It can be divided in two parts, 1019 and 31404, that added together give a palindrome (32423).

The spelling of 101931404 in words is "one hundred one million, nine hundred thirty-one thousand, four hundred four".