31436265004073 has 2 divisors, whose sum is σ = 31436265004074. Its totient is φ = 31436265004072.

The previous prime is 31436265004069. The next prime is 31436265004217. The reversal of 31436265004073 is 37040056263413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24791665849129 + 6644599154944 = 4979123^2 + 2577712^2 .

It is a cyclic number.

It is not a de Polignac number, because 31436265004073 - 2² = 31436265004069 is a prime.

It is not a weakly prime, because it can be changed into another prime (31436265004043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15718132502036 + 15718132502037.

It is an arithmetic number, because the mean of its divisors is an integer number (15718132502037).

Almost surely, 2^{31436265004073} is an apocalyptic number.

It is an amenable number.

31436265004073 is a deficient number, since it is larger than the sum of its proper divisors (1).

31436265004073 is an equidigital number, since it uses as much as digits as its factorization.

31436265004073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 44.

The spelling of 31436265004073 in words is "thirty-one trillion, four hundred thirty-six billion, two hundred sixty-five million, four thousand, seventy-three".