1131022031321 has 32 divisors (see below), whose sum is σ = 1453076878848. Its totient is φ = 855656524800.

The previous prime is 1131022031309. The next prime is 1131022031371. The reversal of 1131022031321 is 1231302201311.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1131022031321 is a prime.

It is a super-2 number, since 2×1131022031321² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131022031293 and 1131022031302.

It is not an unprimeable number, because it can be changed into a prime (1131022031371) 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, 5757521 + ... + 5950721.

It is an arithmetic number, because the mean of its divisors is an integer number (45408652464).

Almost surely, 2^{1131022031321} is an apocalyptic number.

It is an amenable number.

1131022031321 is a deficient number, since it is larger than the sum of its proper divisors (322054847527).

1131022031321 is a wasteful number, since it uses less digits than its factorization.

1131022031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196041.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1131022031321 its reverse (1231302201311), we get a palindrome (2362324232632).

The spelling of 1131022031321 in words is "one trillion, one hundred thirty-one billion, twenty-two million, thirty-one thousand, three hundred twenty-one".