124388651897 has 2 divisors, whose sum is σ = 124388651898. Its totient is φ = 124388651896.

The previous prime is 124388651851. The next prime is 124388651917. The reversal of 124388651897 is 798156883421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123316154896 + 1072497001 = 351164^2 + 32749^2 .

It is an emirp because it is prime and its reverse (798156883421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124388651897 - 2⁶ = 124388651833 is a prime.

It is a super-3 number, since 3×124388651897³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (124388651297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62194325948 + 62194325949.

It is an arithmetic number, because the mean of its divisors is an integer number (62194325949).

Almost surely, 2^124388651897 is an apocalyptic number.

It is an amenable number.

124388651897 is a deficient number, since it is larger than the sum of its proper divisors (1).

124388651897 is an equidigital number, since it uses as much as digits as its factorization.

124388651897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23224320, while the sum is 62.

The spelling of 124388651897 in words is "one hundred twenty-four billion, three hundred eighty-eight million, six hundred fifty-one thousand, eight hundred ninety-seven".