31041023040 has 336 divisors, whose sum is σ = 111698227200. Its totient is φ = 8115075072.

The previous prime is 31041023021. The next prime is 31041023063. The reversal of 31041023040 is 4032014013.

It is a super-2 number, since 2×31041023040² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 24269121 + ... + 24270399.

It is an arithmetic number, because the mean of its divisors is an integer number (332435200).

Almost surely, 2^31041023040 is an apocalyptic number.

31041023040 is a gapful number since it is divisible by the number (30) 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 31041023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55849113600).

31041023040 is an abundant number, since it is smaller than the sum of its proper divisors (80657204160).

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

31041023040 is a wasteful number, since it uses less digits than its factorization.

31041023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31041023040 its reverse (4032014013), we get a palindrome (35073037053).

The spelling of 31041023040 in words is "thirty-one billion, forty-one million, twenty-three thousand, forty".