123014421989 has 2 divisors, whose sum is σ = 123014421990. Its totient is φ = 123014421988.

The previous prime is 123014421953. The next prime is 123014422019. The reversal of 123014421989 is 989124410321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119427609889 + 3586812100 = 345583^2 + 59890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123014421989 is a prime.

It is a super-2 number, since 2×123014421989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123014441989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61507210994 + 61507210995.

It is an arithmetic number, because the mean of its divisors is an integer number (61507210995).

Almost surely, 2^123014421989 is an apocalyptic number.

It is an amenable number.

123014421989 is a deficient number, since it is larger than the sum of its proper divisors (1).

123014421989 is an equidigital number, since it uses as much as digits as its factorization.

123014421989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 123014421989 in words is "one hundred twenty-three billion, fourteen million, four hundred twenty-one thousand, nine hundred eighty-nine".