31140201224 has 32 divisors (see below), whose sum is σ = 64326536640. Its totient is φ = 14014488000.

The previous prime is 31140201187. The next prime is 31140201271. The reversal of 31140201224 is 42210204113.

It is a super-2 number, since 2×31140201224² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31140201196 and 31140201205.

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, 1742924 + ... + 1760699.

It is an arithmetic number, because the mean of its divisors is an integer number (2010204270).

Almost surely, 2^31140201224 is an apocalyptic number.

It is an amenable number.

31140201224 is an abundant number, since it is smaller than the sum of its proper divisors (33186335416).

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

31140201224 is a wasteful number, since it uses less digits than its factorization.

31140201224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503741 (or 3503737 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31140201224 its reverse (42210204113), we get a palindrome (73350405337).

The spelling of 31140201224 in words is "thirty-one billion, one hundred forty million, two hundred one thousand, two hundred twenty-four".