1013131113231 has 4 divisors (see below), whose sum is σ = 1350841484312. Its totient is φ = 675420742152.

The previous prime is 1013131113191. The next prime is 1013131113259. The reversal of 1013131113231 is 1323111313101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1013131113231 - 2⁷ = 1013131113103 is a prime.

It is a super-3 number, since 3×1013131113231³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013131113198 and 1013131113207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013131118231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168855185536 + ... + 168855185541.

It is an arithmetic number, because the mean of its divisors is an integer number (337710371078).

Almost surely, 2^{1013131113231} is an apocalyptic number.

1013131113231 is a deficient number, since it is larger than the sum of its proper divisors (337710371081).

1013131113231 is an equidigital number, since it uses as much as digits as its factorization.

1013131113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337710371080.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1013131113231 its reverse (1323111313101), we get a palindrome (2336242426332).

The spelling of 1013131113231 in words is "one trillion, thirteen billion, one hundred thirty-one million, one hundred thirteen thousand, two hundred thirty-one".