20131233113031 has 8 divisors (see below), whose sum is σ = 26869809573360. Its totient is φ = 13406739364032.

The previous prime is 20131233113029. The next prime is 20131233113039. The reversal of 20131233113031 is 13031133213102.

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

It is not a de Polignac number, because 20131233113031 - 2¹ = 20131233113029 is a prime.

It is a super-2 number, since 2×20131233113031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20131233112992 and 20131233113010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131233113039) 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, 3520674496 + ... + 3520680213.

It is an arithmetic number, because the mean of its divisors is an integer number (3358726196670).

Almost surely, 2^{20131233113031} is an apocalyptic number.

20131233113031 is a deficient number, since it is larger than the sum of its proper divisors (6738576460329).

20131233113031 is an equidigital number, since it uses as much as digits as its factorization.

20131233113031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7041355665.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 20131233113031 its reverse (13031133213102), we get a palindrome (33162366326133).

The spelling of 20131233113031 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty-three million, one hundred thirteen thousand, thirty-one".