1031133320321 has 32 divisors (see below), whose sum is σ = 1137325408128. Its totient is φ = 929068392960.

The previous prime is 1031133320279. The next prime is 1031133320333. The reversal of 1031133320321 is 1230233311301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031133320321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1031133323321) 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, 113418986 + ... + 113428076.

It is an arithmetic number, because the mean of its divisors is an integer number (35541419004).

Almost surely, 2^{1031133320321} is an apocalyptic number.

It is an amenable number.

1031133320321 is a deficient number, since it is larger than the sum of its proper divisors (106192087807).

1031133320321 is a wasteful number, since it uses less digits than its factorization.

1031133320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10401.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1031133320321 its reverse (1230233311301), we get a palindrome (2261366631622).

The spelling of 1031133320321 in words is "one trillion, thirty-one billion, one hundred thirty-three million, three hundred twenty thousand, three hundred twenty-one".