123013203133531 has 8 divisors (see below), whose sum is σ = 124570545624000. Its totient is φ = 121455865976640.

The previous prime is 123013203133477. The next prime is 123013203133549. The reversal of 123013203133531 is 135331302310321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 123013203133531 - 2⁴³ = 114217110111323 is a prime.

It is a super-2 number, since 2×123013203133531² (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 = 123013203133493 and 123013203133502.

It is not an unprimeable number, because it can be changed into a prime (123013203139531) 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, 67319745 + ... + 69122893.

It is an arithmetic number, because the mean of its divisors is an integer number (15571318203000).

Almost surely, 2^{123013203133531} is an apocalyptic number.

123013203133531 is a deficient number, since it is larger than the sum of its proper divisors (1557342490469).

123013203133531 is an equidigital number, since it uses as much as digits as its factorization.

123013203133531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666789.

The product of its (nonzero) digits is 14580, while the sum is 31.

Adding to 123013203133531 its reverse (135331302310321), we get a palindrome (258344505443852).

The spelling of 123013203133531 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, one hundred thirty-three thousand, five hundred thirty-one".