1232312131101 has 16 divisors (see below), whose sum is σ = 1687540386368. Its totient is φ = 799313961600.

The previous prime is 1232312131097. The next prime is 1232312131103. The reversal of 1232312131101 is 1011312132321.

It is not a de Polignac number, because 1232312131101 - 2² = 1232312131097 is a prime.

It is a super-2 number, since 2×1232312131101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232312131103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4104186 + ... + 4394196.

It is an arithmetic number, because the mean of its divisors is an integer number (105471274148).

Almost surely, 2^{1232312131101} is an apocalyptic number.

It is an amenable number.

1232312131101 is a deficient number, since it is larger than the sum of its proper divisors (455228255267).

1232312131101 is a wasteful number, since it uses less digits than its factorization.

1232312131101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328332.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1232312131101 its reverse (1011312132321), we get a palindrome (2243624263422).

The spelling of 1232312131101 in words is "one trillion, two hundred thirty-two billion, three hundred twelve million, one hundred thirty-one thousand, one hundred one".