123131302201031 has 8 divisors (see below), whose sum is σ = 123769643601504. Its totient is φ = 122492964464640.

The previous prime is 123131302200961. The next prime is 123131302201093. The reversal of 123131302201031 is 130102203131321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123131302201031 is a prime.

It is a super-2 number, since 2×123131302201031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123131302200988 and 123131302201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123131302201931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89578415 + ... + 90942591.

It is an arithmetic number, because the mean of its divisors is an integer number (15471205450188).

Almost surely, 2^{123131302201031} is an apocalyptic number.

123131302201031 is a deficient number, since it is larger than the sum of its proper divisors (638341400473).

123131302201031 is a wasteful number, since it uses less digits than its factorization.

123131302201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832041.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 123131302201031 its reverse (130102203131321), we get a palindrome (253233505332352).

The spelling of 123131302201031 in words is "one hundred twenty-three trillion, one hundred thirty-one billion, three hundred two million, two hundred one thousand, thirty-one".