121232102291 has 2 divisors, whose sum is σ = 121232102292. Its totient is φ = 121232102290.

The previous prime is 121232102279. The next prime is 121232102347. The reversal of 121232102291 is 192201232121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121232102291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121232102291.

It is not a weakly prime, because it can be changed into another prime (121232102191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616051145 + 60616051146.

It is an arithmetic number, because the mean of its divisors is an integer number (60616051146).

Almost surely, 2^121232102291 is an apocalyptic number.

121232102291 is a deficient number, since it is larger than the sum of its proper divisors (1).

121232102291 is an equidigital number, since it uses as much as digits as its factorization.

121232102291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 121232102291 in words is "one hundred twenty-one billion, two hundred thirty-two million, one hundred two thousand, two hundred ninety-one".