313661120237 has 2 divisors, whose sum is σ = 313661120238. Its totient is φ = 313661120236.

The previous prime is 313661120191. The next prime is 313661120281. The reversal of 313661120237 is 732021166313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253135771876 + 60525348361 = 503126^2 + 246019^2 .

It is a cyclic number.

It is not a de Polignac number, because 313661120237 - 2¹² = 313661116141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313661120197 and 313661120206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313661120287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156830560118 + 156830560119.

It is an arithmetic number, because the mean of its divisors is an integer number (156830560119).

Almost surely, 2^313661120237 is an apocalyptic number.

It is an amenable number.

313661120237 is a deficient number, since it is larger than the sum of its proper divisors (1).

313661120237 is an equidigital number, since it uses as much as digits as its factorization.

313661120237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 313661120237 in words is "three hundred thirteen billion, six hundred sixty-one million, one hundred twenty thousand, two hundred thirty-seven".