121755514607 has 2 divisors, whose sum is σ = 121755514608. Its totient is φ = 121755514606.

The previous prime is 121755514597. The next prime is 121755514619. The reversal of 121755514607 is 706415557121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121755514607 - 2⁸ = 121755514351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121755514637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60877757303 + 60877757304.

It is an arithmetic number, because the mean of its divisors is an integer number (60877757304).

Almost surely, 2^121755514607 is an apocalyptic number.

121755514607 is a deficient number, since it is larger than the sum of its proper divisors (1).

121755514607 is an equidigital number, since it uses as much as digits as its factorization.

121755514607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294000, while the sum is 44.

The spelling of 121755514607 in words is "one hundred twenty-one billion, seven hundred fifty-five million, five hundred fourteen thousand, six hundred seven".