123031132331 has 16 divisors (see below), whose sum is σ = 127697472000. Its totient is φ = 118393463328.

The previous prime is 123031132313. The next prime is 123031132381. The reversal of 123031132331 is 133231130321.

It is a cyclic number.

It is not a de Polignac number, because 123031132331 - 2¹⁴ = 123031115947 is a prime.

It is a super-2 number, since 2×123031132331² (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 = 123031132297 and 123031132306.

It is not an unprimeable number, because it can be changed into a prime (123031132381) 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, 28723316 + ... + 28727598.

It is an arithmetic number, because the mean of its divisors is an integer number (7981092000).

Almost surely, 2^123031132331 is an apocalyptic number.

123031132331 is a deficient number, since it is larger than the sum of its proper divisors (4666339669).

123031132331 is a wasteful number, since it uses less digits than its factorization.

123031132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7378.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 123031132331 its reverse (133231130321), we get a palindrome (256262262652).

The spelling of 123031132331 in words is "one hundred twenty-three billion, thirty-one million, one hundred thirty-two thousand, three hundred thirty-one".