31100045460 has 96 divisors (see below), whose sum is σ = 96297973632. Its totient is φ = 7436113920.

The previous prime is 31100045441. The next prime is 31100045491. The reversal of 31100045460 is 6454000113.

It is a super-2 number, since 2×31100045460² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31100045460.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274569 + ... + 370928.

It is an arithmetic number, because the mean of its divisors is an integer number (1003103892).

Almost surely, 2^31100045460 is an apocalyptic number.

31100045460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31100045460 is an abundant number, since it is smaller than the sum of its proper divisors (65197928172).

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

31100045460 is a wasteful number, since it uses less digits than its factorization.

31100045460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645593 (or 645591 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31100045460 its reverse (6454000113), we get a palindrome (37554045573).

The spelling of 31100045460 in words is "thirty-one billion, one hundred million, forty-five thousand, four hundred sixty".