30631371340 has 24 divisors (see below), whose sum is σ = 64432936512. Its totient is φ = 12232156800.

The previous prime is 30631371269. The next prime is 30631371373. The reversal of 30631371340 is 4317313603.

It is a happy number.

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, 1262164 + ... + 1286203.

It is an arithmetic number, because the mean of its divisors is an integer number (2684705688).

Almost surely, 2^30631371340 is an apocalyptic number.

It is an amenable number.

30631371340 is an abundant number, since it is smaller than the sum of its proper divisors (33801565172).

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

30631371340 is a wasteful number, since it uses less digits than its factorization.

30631371340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548977 (or 2548975 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 31.

Adding to 30631371340 its reverse (4317313603), we get a palindrome (34948684943).

The spelling of 30631371340 in words is "thirty billion, six hundred thirty-one million, three hundred seventy-one thousand, three hundred forty".