31227075340 has 12 divisors (see below), whose sum is σ = 65576858256. Its totient is φ = 12490830128.

The previous prime is 31227075337. The next prime is 31227075359. The reversal of 31227075340 is 4357072213.

It is a super-2 number, since 2×31227075340² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31227075296 and 31227075305.

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 3 ways as a sum of consecutive naturals, for example, 780676864 + ... + 780676903.

It is an arithmetic number, because the mean of its divisors is an integer number (5464738188).

Almost surely, 2^31227075340 is an apocalyptic number.

It is an amenable number.

31227075340 is an abundant number, since it is smaller than the sum of its proper divisors (34349782916).

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

31227075340 is a wasteful number, since it uses less digits than its factorization.

31227075340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561353776 (or 1561353774 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 31227075340 in words is "thirty-one billion, two hundred twenty-seven million, seventy-five thousand, three hundred forty".