123131022001019 has 16 divisors (see below), whose sum is σ = 128740303072416. Its totient is φ = 117648181728000.

The previous prime is 123131022001007. The next prime is 123131022001073. The reversal of 123131022001019 is 910100220131321.

It is a cyclic number.

It is not a de Polignac number, because 123131022001019 - 2²⁴ = 123131005223803 is a prime.

It is a super-2 number, since 2×123131022001019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123131022001319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42817457 + ... + 45602594.

It is an arithmetic number, because the mean of its divisors is an integer number (8046268942026).

Almost surely, 2^{123131022001019} is an apocalyptic number.

123131022001019 is a deficient number, since it is larger than the sum of its proper divisors (5609281071397).

123131022001019 is an equidigital number, since it uses as much as digits as its factorization.

123131022001019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88420766.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 123131022001019 in words is "one hundred twenty-three trillion, one hundred thirty-one billion, twenty-two million, one thousand, nineteen".