124129913069 has 2 divisors, whose sum is σ = 124129913070. Its totient is φ = 124129913068.

The previous prime is 124129913059. The next prime is 124129913071. The reversal of 124129913069 is 960319921421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62842969225 + 61286943844 = 250685^2 + 247562^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124129913069 is a prime.

It is a super-2 number, since 2×124129913069² (a number of 23 digits) contains 22 as substring.

Together with 124129913071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124129913059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62064956534 + 62064956535.

It is an arithmetic number, because the mean of its divisors is an integer number (62064956535).

Almost surely, 2^124129913069 is an apocalyptic number.

It is an amenable number.

124129913069 is a deficient number, since it is larger than the sum of its proper divisors (1).

124129913069 is an equidigital number, since it uses as much as digits as its factorization.

124129913069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 124129913069 in words is "one hundred twenty-four billion, one hundred twenty-nine million, nine hundred thirteen thousand, sixty-nine".