123031033131 has 8 divisors (see below), whose sum is σ = 167856293440. Its totient is φ = 80113230792.

The previous prime is 123031033039. The next prime is 123031033133. The reversal of 123031033131 is 131330130321.

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

It is not a de Polignac number, because 123031033131 - 2¹¹ = 123031031083 is a prime.

It is a super-2 number, since 2×123031033131² (a number of 23 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 = 123031033098 and 123031033107.

It is not an unprimeable number, because it can be changed into a prime (123031033133) 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, 476864341 + ... + 476864598.

It is an arithmetic number, because the mean of its divisors is an integer number (20982036680).

Almost surely, 2^123031033131 is an apocalyptic number.

123031033131 is a deficient number, since it is larger than the sum of its proper divisors (44825260309).

123031033131 is an equidigital number, since it uses as much as digits as its factorization.

123031033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953728985.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 123031033131 its reverse (131330130321), we get a palindrome (254361163452).

The spelling of 123031033131 in words is "one hundred twenty-three billion, thirty-one million, thirty-three thousand, one hundred thirty-one".