1121033121013 has 24 divisors (see below), whose sum is σ = 1240310730312. Its totient is φ = 1012396290048.

The previous prime is 1121033120989. The next prime is 1121033121077. The reversal of 1121033121013 is 3101213301211.

It can be written as a sum of positive squares in 12 ways, for example, as 772110175204 + 348922945809 = 878698^2 + 590697^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1121033121013 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 (1121033121083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2984545 + ... + 3339097.

It is an arithmetic number, because the mean of its divisors is an integer number (51679613763).

Almost surely, 2^{1121033121013} is an apocalyptic number.

1121033121013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1121033121013 is a deficient number, since it is larger than the sum of its proper divisors (119277609299).

1121033121013 is a wasteful number, since it uses less digits than its factorization.

1121033121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354985 (or 354972 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1121033121013 its reverse (3101213301211), we get a palindrome (4222246422224).

The spelling of 1121033121013 in words is "one trillion, one hundred twenty-one billion, thirty-three million, one hundred twenty-one thousand, thirteen".