31914583073 has 2 divisors, whose sum is σ = 31914583074. Its totient is φ = 31914583072.

The previous prime is 31914583039. The next prime is 31914583091. The reversal of 31914583073 is 37038541913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31008392464 + 906190609 = 176092^2 + 30103^2 .

It is an emirp because it is prime and its reverse (37038541913) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31914583073 - 2⁶ = 31914583009 is a prime.

It is a super-2 number, since 2×31914583073² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31914583373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15957291536 + 15957291537.

It is an arithmetic number, because the mean of its divisors is an integer number (15957291537).

Almost surely, 2^31914583073 is an apocalyptic number.

It is an amenable number.

31914583073 is a deficient number, since it is larger than the sum of its proper divisors (1).

31914583073 is an equidigital number, since it uses as much as digits as its factorization.

31914583073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 31914583073 in words is "thirty-one billion, nine hundred fourteen million, five hundred eighty-three thousand, seventy-three".