1131321122013 has 16 divisors (see below), whose sum is σ = 1512470082816. Its totient is φ = 752194789440.

The previous prime is 1131321121967. The next prime is 1131321122077. The reversal of 1131321122013 is 3102211231311.

It is not a de Polignac number, because 1131321122013 - 2⁹ = 1131321121501 is a prime.

It is a super-2 number, since 2×1131321122013² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131321122213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2521356 + ... + 2935962.

It is an arithmetic number, because the mean of its divisors is an integer number (94529380176).

Almost surely, 2^{1131321122013} is an apocalyptic number.

It is an amenable number.

1131321122013 is a deficient number, since it is larger than the sum of its proper divisors (381148960803).

1131321122013 is a wasteful number, since it uses less digits than its factorization.

1131321122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417044.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1131321122013 its reverse (3102211231311), we get a palindrome (4233532353324).

The spelling of 1131321122013 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-one million, one hundred twenty-two thousand, thirteen".