31916012850233 has 2 divisors, whose sum is σ = 31916012850234. Its totient is φ = 31916012850232.

The previous prime is 31916012850199. The next prime is 31916012850287. The reversal of 31916012850233 is 33205821061913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26704782222889 + 5211230627344 = 5167667^2 + 2282812^2 .

It is a cyclic number.

It is not a de Polignac number, because 31916012850233 - 2¹⁰ = 31916012849209 is a prime.

It is not a weakly prime, because it can be changed into another prime (31916012840233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15958006425116 + 15958006425117.

It is an arithmetic number, because the mean of its divisors is an integer number (15958006425117).

Almost surely, 2^{31916012850233} is an apocalyptic number.

It is an amenable number.

31916012850233 is a deficient number, since it is larger than the sum of its proper divisors (1).

31916012850233 is an equidigital number, since it uses as much as digits as its factorization.

31916012850233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 31916012850233 in words is "thirty-one trillion, nine hundred sixteen billion, twelve million, eight hundred fifty thousand, two hundred thirty-three".