31400046373 has 2 divisors, whose sum is σ = 31400046374. Its totient is φ = 31400046372.

The previous prime is 31400046331. The next prime is 31400046383. The reversal of 31400046373 is 37364000413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30491445924 + 908600449 = 174618^2 + 30143^2 .

It is a cyclic number.

It is not a de Polignac number, because 31400046373 - 2¹³ = 31400038181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31400046383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15700023186 + 15700023187.

It is an arithmetic number, because the mean of its divisors is an integer number (15700023187).

Almost surely, 2^31400046373 is an apocalyptic number.

It is an amenable number.

31400046373 is a deficient number, since it is larger than the sum of its proper divisors (1).

31400046373 is an equidigital number, since it uses as much as digits as its factorization.

31400046373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 31400046373 its reverse (37364000413), we get a palindrome (68764046786).

The spelling of 31400046373 in words is "thirty-one billion, four hundred million, forty-six thousand, three hundred seventy-three".