31144333142407 has 2 divisors, whose sum is σ = 31144333142408. Its totient is φ = 31144333142406.

The previous prime is 31144333142401. The next prime is 31144333142449. The reversal of 31144333142407 is 70424133344113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31144333142407 - 2²³ = 31144324753799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31144333142407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31144333142401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15572166571203 + 15572166571204.

It is an arithmetic number, because the mean of its divisors is an integer number (15572166571204).

Almost surely, 2^{31144333142407} is an apocalyptic number.

31144333142407 is a deficient number, since it is larger than the sum of its proper divisors (1).

31144333142407 is an equidigital number, since it uses as much as digits as its factorization.

31144333142407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 40.

The spelling of 31144333142407 in words is "thirty-one trillion, one hundred forty-four billion, three hundred thirty-three million, one hundred forty-two thousand, four hundred seven".