124121323493 has 2 divisors, whose sum is σ = 124121323494. Its totient is φ = 124121323492.

The previous prime is 124121323471. The next prime is 124121323499. The reversal of 124121323493 is 394323121421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107782859809 + 16338463684 = 328303^2 + 127822^2 .

It is a cyclic number.

It is not a de Polignac number, because 124121323493 - 2²² = 124117129189 is a prime.

It is a super-2 number, since 2×124121323493² (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 (124121323499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62060661746 + 62060661747.

It is an arithmetic number, because the mean of its divisors is an integer number (62060661747).

Almost surely, 2^124121323493 is an apocalyptic number.

It is an amenable number.

124121323493 is a deficient number, since it is larger than the sum of its proper divisors (1).

124121323493 is an equidigital number, since it uses as much as digits as its factorization.

124121323493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The spelling of 124121323493 in words is "one hundred twenty-four billion, one hundred twenty-one million, three hundred twenty-three thousand, four hundred ninety-three".