10312611540 has 144 divisors (see below), whose sum is σ = 36643368384. Its totient is φ = 2142873600.

The previous prime is 10312611527. The next prime is 10312611601. The reversal of 10312611540 is 4511621301.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10312611540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127101 + ... + 191780.

It is an arithmetic number, because the mean of its divisors is an integer number (254467836).

Almost surely, 2^10312611540 is an apocalyptic number.

10312611540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10312611540 is an abundant number, since it is smaller than the sum of its proper divisors (26330756844).

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

10312611540 is a wasteful number, since it uses less digits than its factorization.

10312611540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318918 (or 318909 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 10312611540 in words is "ten billion, three hundred twelve million, six hundred eleven thousand, five hundred forty".