123013320977 has 2 divisors, whose sum is σ = 123013320978. Its totient is φ = 123013320976.

The previous prime is 123013320967. The next prime is 123013321073. The reversal of 123013320977 is 779023310321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79141505041 + 43871815936 = 281321^2 + 209456^2 .

It is a cyclic number.

It is not a de Polignac number, because 123013320977 - 2¹⁰ = 123013319953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123013320977.

It is not a weakly prime, because it can be changed into another prime (123013320907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61506660488 + 61506660489.

It is an arithmetic number, because the mean of its divisors is an integer number (61506660489).

Almost surely, 2^123013320977 is an apocalyptic number.

It is an amenable number.

123013320977 is a deficient number, since it is larger than the sum of its proper divisors (1).

123013320977 is an equidigital number, since it uses as much as digits as its factorization.

123013320977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 38.

The spelling of 123013320977 in words is "one hundred twenty-three billion, thirteen million, three hundred twenty thousand, nine hundred seventy-seven".