121037361749 has 2 divisors, whose sum is σ = 121037361750. Its totient is φ = 121037361748.

The previous prime is 121037361671. The next prime is 121037361791. The reversal of 121037361749 is 947163730121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70835822500 + 50201539249 = 266150^2 + 224057^2 .

It is a cyclic number.

It is not a de Polignac number, because 121037361749 - 2³⁶ = 52317885013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121037361449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60518680874 + 60518680875.

It is an arithmetic number, because the mean of its divisors is an integer number (60518680875).

Almost surely, 2^121037361749 is an apocalyptic number.

It is an amenable number.

121037361749 is a deficient number, since it is larger than the sum of its proper divisors (1).

121037361749 is an equidigital number, since it uses as much as digits as its factorization.

121037361749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 121037361749 in words is "one hundred twenty-one billion, thirty-seven million, three hundred sixty-one thousand, seven hundred forty-nine".