31010102144 has 64 divisors (see below), whose sum is σ = 70654053600. Its totient is φ = 13280501760.

The previous prime is 31010102131. The next prime is 31010102171. The reversal of 31010102144 is 44120101013.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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, 1315292 + ... + 1338660.

Almost surely, 2^31010102144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31010102144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35327026800).

31010102144 is an abundant number, since it is smaller than the sum of its proper divisors (39643951456).

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

31010102144 is a wasteful number, since it uses less digits than its factorization.

31010102144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24871 (or 24859 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31010102144 its reverse (44120101013), we get a palindrome (75130203157).

The spelling of 31010102144 in words is "thirty-one billion, ten million, one hundred two thousand, one hundred forty-four".