31297214783 has 2 divisors, whose sum is σ = 31297214784. Its totient is φ = 31297214782.

The previous prime is 31297214731. The next prime is 31297214797. The reversal of 31297214783 is 38741279213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31297214783 - 2¹⁸ = 31296952639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31297219783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15648607391 + 15648607392.

It is an arithmetic number, because the mean of its divisors is an integer number (15648607392).

Almost surely, 2^31297214783 is an apocalyptic number.

31297214783 is a deficient number, since it is larger than the sum of its proper divisors (1).

31297214783 is an equidigital number, since it uses as much as digits as its factorization.

31297214783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 47.

The spelling of 31297214783 in words is "thirty-one billion, two hundred ninety-seven million, two hundred fourteen thousand, seven hundred eighty-three".