1013120231133 has 4 divisors (see below), whose sum is σ = 1350826974848. Its totient is φ = 675413487420.

The previous prime is 1013120231129. The next prime is 1013120231141. The reversal of 1013120231133 is 3311320213101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1013120231133 - 2² = 1013120231129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013120231033) 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, 168853371853 + ... + 168853371858.

It is an arithmetic number, because the mean of its divisors is an integer number (337706743712).

Almost surely, 2^{1013120231133} is an apocalyptic number.

It is an amenable number.

1013120231133 is a deficient number, since it is larger than the sum of its proper divisors (337706743715).

1013120231133 is an equidigital number, since it uses as much as digits as its factorization.

1013120231133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337706743714.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1013120231133 its reverse (3311320213101), we get a palindrome (4324440444234).

It can be divided in two parts, 1013120 and 231133, that added together give a triangular number (1244253 = T₁₅₇₇).

The spelling of 1013120231133 in words is "one trillion, thirteen billion, one hundred twenty million, two hundred thirty-one thousand, one hundred thirty-three".