120210312031091 has 2 divisors, whose sum is σ = 120210312031092. Its totient is φ = 120210312031090.

The previous prime is 120210312031087. The next prime is 120210312031127. The reversal of 120210312031091 is 190130213012021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120210312031091 - 2² = 120210312031087 is a prime.

It is a super-2 number, since 2×120210312031091² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120210312031091.

It is not a weakly prime, because it can be changed into another prime (120210312031081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60105156015545 + 60105156015546.

It is an arithmetic number, because the mean of its divisors is an integer number (60105156015546).

Almost surely, 2^{120210312031091} is an apocalyptic number.

120210312031091 is a deficient number, since it is larger than the sum of its proper divisors (1).

120210312031091 is an equidigital number, since it uses as much as digits as its factorization.

120210312031091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 120210312031091 in words is "one hundred twenty trillion, two hundred ten billion, three hundred twelve million, thirty-one thousand, ninety-one".