31491123414 has 16 divisors (see below), whose sum is σ = 62985216000. Its totient is φ = 10496546280.

The previous prime is 31491123409. The next prime is 31491123439. The reversal of 31491123414 is 41432119413.

It is a congruent 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, 28587 + ... + 252585.

It is an arithmetic number, because the mean of its divisors is an integer number (3936576000).

Almost surely, 2^31491123414 is an apocalyptic number.

31491123414 is an abundant number, since it is smaller than the sum of its proper divisors (31494092586).

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

31491123414 is a wasteful number, since it uses less digits than its factorization.

31491123414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247435.

The product of its digits is 10368, while the sum is 33.

The spelling of 31491123414 in words is "thirty-one billion, four hundred ninety-one million, one hundred twenty-three thousand, four hundred fourteen".