31401420142399 has 2 divisors, whose sum is σ = 31401420142400. Its totient is φ = 31401420142398.

The previous prime is 31401420142387. The next prime is 31401420142403. The reversal of 31401420142399 is 99324102410413.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31401420142399 - 2⁴¹ = 29202396886847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31401420142349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15700710071199 + 15700710071200.

It is an arithmetic number, because the mean of its divisors is an integer number (15700710071200).

Almost surely, 2^{31401420142399} is an apocalyptic number.

31401420142399 is a deficient number, since it is larger than the sum of its proper divisors (1).

31401420142399 is an equidigital number, since it uses as much as digits as its factorization.

31401420142399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 31401420142399 in words is "thirty-one trillion, four hundred one billion, four hundred twenty million, one hundred forty-two thousand, three hundred ninety-nine".