1012133231113 has 4 divisors (see below), whose sum is σ = 1071670480020. Its totient is φ = 952595982208.

The previous prime is 1012133231107. The next prime is 1012133231119. The reversal of 1012133231113 is 3111323312101.

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

It is an interprime number because it is at equal distance from previous prime (1012133231107) and next prime (1012133231119).

It can be written as a sum of positive squares in 2 ways, for example, as 821292687504 + 190840543609 = 906252^2 + 436853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012133231113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012133231119) 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, 29768624428 + ... + 29768624461.

It is an arithmetic number, because the mean of its divisors is an integer number (267917620005).

Almost surely, 2^{1012133231113} is an apocalyptic number.

It is an amenable number.

1012133231113 is a deficient number, since it is larger than the sum of its proper divisors (59537248907).

1012133231113 is an equidigital number, since it uses as much as digits as its factorization.

1012133231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59537248906.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1012133231113 its reverse (3111323312101), we get a palindrome (4123456543214).

The spelling of 1012133231113 in words is "one trillion, twelve billion, one hundred thirty-three million, two hundred thirty-one thousand, one hundred thirteen".