101031144 has 32 divisors (see below), whose sum is σ = 257346720. Its totient is φ = 33041216.

The previous prime is 101031137. The next prime is 101031163. The reversal of 101031144 is 441130101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38442 + ... + 40985.

It is an arithmetic number, because the mean of its divisors is an integer number (8042085).

Almost surely, 2^101031144 is an apocalyptic number.

It is an amenable number.

101031144 is an abundant number, since it is smaller than the sum of its proper divisors (156315576).

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

101031144 is a wasteful number, since it uses less digits than its factorization.

101031144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79489 (or 79485 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 101031144 is about 10051.4249736045. The cubic root of 101031144 is about 465.7488131562.

Adding to 101031144 its reverse (441130101), we get a palindrome (542161245).

The spelling of 101031144 in words is "one hundred one million, thirty-one thousand, one hundred forty-four".