123051220022499 has 32 divisors (see below), whose sum is σ = 177763536910080. Its totient is φ = 75411285368832.

The previous prime is 123051220022483. The next prime is 123051220022501. The reversal of 123051220022499 is 994220022150321.

It is not a de Polignac number, because 123051220022499 - 2⁴ = 123051220022483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123051220022499.

It is not an unprimeable number, because it can be changed into a prime (123051220022999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95785944 + ... + 97062090.

It is an arithmetic number, because the mean of its divisors is an integer number (5555110528440).

Almost surely, 2^{123051220022499} is an apocalyptic number.

123051220022499 is a deficient number, since it is larger than the sum of its proper divisors (54712316887581).

123051220022499 is a wasteful number, since it uses less digits than its factorization.

123051220022499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320179.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 123051220022499 in words is "one hundred twenty-three trillion, fifty-one billion, two hundred twenty million, twenty-two thousand, four hundred ninety-nine".