123131012333 has 16 divisors (see below), whose sum is σ = 145638821760. Its totient is φ = 101855880000.

The previous prime is 123131012297. The next prime is 123131012341. The reversal of 123131012333 is 333210131321.

It is not a de Polignac number, because 123131012333 - 2¹⁶ = 123130946797 is a prime.

It is a super-2 number, since 2×123131012333² (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 = 123131012299 and 123131012308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123131012833) 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, 322223 + ... + 591683.

It is an arithmetic number, because the mean of its divisors is an integer number (9102426360).

Almost surely, 2^123131012333 is an apocalyptic number.

It is an amenable number.

123131012333 is a deficient number, since it is larger than the sum of its proper divisors (22507809427).

123131012333 is a wasteful number, since it uses less digits than its factorization.

123131012333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271748.

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

Adding to 123131012333 its reverse (333210131321), we get a palindrome (456341143654).

The spelling of 123131012333 in words is "one hundred twenty-three billion, one hundred thirty-one million, twelve thousand, three hundred thirty-three".