1131033120321 has 32 divisors (see below), whose sum is σ = 1629335715840. Its totient is φ = 693756385344.

The previous prime is 1131033120271. The next prime is 1131033120431. The reversal of 1131033120321 is 1230213301311.

It is a happy number.

It is not a de Polignac number, because 1131033120321 - 2⁹ = 1131033119809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131033120121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23980200 + ... + 24027318.

It is an arithmetic number, because the mean of its divisors is an integer number (50916741120).

Almost surely, 2^{1131033120321} is an apocalyptic number.

It is an amenable number.

1131033120321 is a deficient number, since it is larger than the sum of its proper divisors (498302595519).

1131033120321 is a wasteful number, since it uses less digits than its factorization.

1131033120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49125.

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

Adding to 1131033120321 its reverse (1230213301311), we get a palindrome (2361246421632).

The spelling of 1131033120321 in words is "one trillion, one hundred thirty-one billion, thirty-three million, one hundred twenty thousand, three hundred twenty-one".