31401414442427 has 2 divisors, whose sum is σ = 31401414442428. Its totient is φ = 31401414442426.

The previous prime is 31401414442399. The next prime is 31401414442471. The reversal of 31401414442427 is 72424441410413.

It is a weak prime.

It is an emirp because it is prime and its reverse (72424441410413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31401414442427 is a prime.

It is not a weakly prime, because it can be changed into another prime (31401414442477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15700707221213 + 15700707221214.

It is an arithmetic number, because the mean of its divisors is an integer number (15700707221214).

Almost surely, 2^{31401414442427} is an apocalyptic number.

31401414442427 is a deficient number, since it is larger than the sum of its proper divisors (1).

31401414442427 is an equidigital number, since it uses as much as digits as its factorization.

31401414442427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 344064, while the sum is 41.

The spelling of 31401414442427 in words is "thirty-one trillion, four hundred one billion, four hundred fourteen million, four hundred forty-two thousand, four hundred twenty-seven".