123133101231331 has 16 divisors (see below), whose sum is σ = 130707976468608. Its totient is φ = 115595275622400.

The previous prime is 123133101231319. The next prime is 123133101231401. The reversal of 123133101231331 is 133132101331321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123133101231331 - 2²¹ = 123133099134179 is a prime.

It is a super-2 number, since 2×123133101231331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123133101231331.

It is not an unprimeable number, because it can be changed into a prime (123133101231031) 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, 17991451 + ... + 23873803.

It is an arithmetic number, because the mean of its divisors is an integer number (8169248529288).

Almost surely, 2^{123133101231331} is an apocalyptic number.

123133101231331 is a deficient number, since it is larger than the sum of its proper divisors (7574875237277).

123133101231331 is a wasteful number, since it uses less digits than its factorization.

123133101231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885502.

The product of its (nonzero) digits is 2916, while the sum is 28.

Adding to 123133101231331 its reverse (133132101331321), we get a palindrome (256265202562652).

The spelling of 123133101231331 in words is "one hundred twenty-three trillion, one hundred thirty-three billion, one hundred one million, two hundred thirty-one thousand, three hundred thirty-one".