124420354504251 has 32 divisors (see below), whose sum is σ = 189509799241728. Its totient is φ = 71930726300160.

The previous prime is 124420354504249. The next prime is 124420354504309. The reversal of 124420354504251 is 152405453024421.

It is not a de Polignac number, because 124420354504251 - 2¹ = 124420354504249 is a prime.

It is a super-2 number, since 2×124420354504251² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124420354504751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171175435 + ... + 171900756.

It is an arithmetic number, because the mean of its divisors is an integer number (5922181226304).

Almost surely, 2^{124420354504251} is an apocalyptic number.

124420354504251 is a deficient number, since it is larger than the sum of its proper divisors (65089444737477).

124420354504251 is a wasteful number, since it uses less digits than its factorization.

124420354504251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343076771.

The product of its (nonzero) digits is 768000, while the sum is 42.

The spelling of 124420354504251 in words is "one hundred twenty-four trillion, four hundred twenty billion, three hundred fifty-four million, five hundred four thousand, two hundred fifty-one".