10311023040 has 112 divisors (see below), whose sum is σ = 32784397728. Its totient is φ = 2745667584.

The previous prime is 10311023017. The next prime is 10311023059. The reversal of 10311023040 is 4032011301.

It is a super-2 number, since 2×10311023040² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696354 + ... + 711006.

Almost surely, 2^10311023040 is an apocalyptic number.

10311023040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10311023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16392198864).

10311023040 is an abundant number, since it is smaller than the sum of its proper divisors (22473374688).

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

10311023040 is a wasteful number, since it uses less digits than its factorization.

10311023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15406 (or 15396 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 10311023040 its reverse (4032011301), we get a palindrome (14343034341).

The spelling of 10311023040 in words is "ten billion, three hundred eleven million, twenty-three thousand, forty".