31006818053 has 2 divisors, whose sum is σ = 31006818054. Its totient is φ = 31006818052.

The previous prime is 31006817921. The next prime is 31006818071. The reversal of 31006818053 is 35081860013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30527777284 + 479040769 = 174722^2 + 21887^2 .

It is an emirp because it is prime and its reverse (35081860013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31006818053 - 2¹⁴ = 31006801669 is a prime.

It is a super-2 number, since 2×31006818053² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31006818083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15503409026 + 15503409027.

It is an arithmetic number, because the mean of its divisors is an integer number (15503409027).

Almost surely, 2^31006818053 is an apocalyptic number.

It is an amenable number.

31006818053 is a deficient number, since it is larger than the sum of its proper divisors (1).

31006818053 is an equidigital number, since it uses as much as digits as its factorization.

31006818053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 31006818053 in words is "thirty-one billion, six million, eight hundred eighteen thousand, fifty-three".