123131333101 has 24 divisors (see below), whose sum is σ = 150826724160. Its totient is φ = 99950760000.

The previous prime is 123131333089. The next prime is 123131333123. The reversal of 123131333101 is 101333131321.

It is not a de Polignac number, because 123131333101 - 2¹¹ = 123131331053 is a prime.

It is a super-2 number, since 2×123131333101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123131333401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2771896 + ... + 2815966.

It is an arithmetic number, because the mean of its divisors is an integer number (6284446840).

Almost surely, 2^123131333101 is an apocalyptic number.

It is an amenable number.

123131333101 is a deficient number, since it is larger than the sum of its proper divisors (27695391059).

123131333101 is a wasteful number, since it uses less digits than its factorization.

123131333101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47105 (or 47098 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 123131333101 its reverse (101333131321), we get a palindrome (224464464422).

The spelling of 123131333101 in words is "one hundred twenty-three billion, one hundred thirty-one million, three hundred thirty-three thousand, one hundred one".