121524508379 has 2 divisors, whose sum is σ = 121524508380. Its totient is φ = 121524508378.

The previous prime is 121524508373. The next prime is 121524508387. The reversal of 121524508379 is 973805425121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121524508379 - 2²⁰ = 121523459803 is a prime.

It is a super-2 number, since 2×121524508379² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121524508373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60762254189 + 60762254190.

It is an arithmetic number, because the mean of its divisors is an integer number (60762254190).

Almost surely, 2^121524508379 is an apocalyptic number.

121524508379 is a deficient number, since it is larger than the sum of its proper divisors (1).

121524508379 is an equidigital number, since it uses as much as digits as its factorization.

121524508379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 121524508379 in words is "one hundred twenty-one billion, five hundred twenty-four million, five hundred eight thousand, three hundred seventy-nine".