1231422511099 has 8 divisors (see below), whose sum is σ = 1343412742320. Its totient is φ = 1119439401600.

The previous prime is 1231422511091. The next prime is 1231422511103. The reversal of 1231422511099 is 9901152241321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231422511099 - 2³ = 1231422511091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1231422511091) 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 7 ways as a sum of consecutive naturals, for example, 1415634 + ... + 2113495.

It is an arithmetic number, because the mean of its divisors is an integer number (167926592790).

Almost surely, 2^{1231422511099} is an apocalyptic number.

1231422511099 is a deficient number, since it is larger than the sum of its proper divisors (111990231221).

1231422511099 is a wasteful number, since it uses less digits than its factorization.

1231422511099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560861.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 1231422511099 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-two million, five hundred eleven thousand, ninety-nine".