1011320322131 has 16 divisors (see below), whose sum is σ = 1181290944000. Its totient is φ = 847871437248.

The previous prime is 1011320322119. The next prime is 1011320322149. The reversal of 1011320322131 is 1312230231101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1011320322131 - 2¹⁸ = 1011320059987 is a prime.

It is a super-2 number, since 2×1011320322131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011320322151) 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, 6070370 + ... + 6234743.

It is an arithmetic number, because the mean of its divisors is an integer number (73830684000).

Almost surely, 2^{1011320322131} is an apocalyptic number.

1011320322131 is a deficient number, since it is larger than the sum of its proper divisors (169970621869).

1011320322131 is a wasteful number, since it uses less digits than its factorization.

1011320322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12305378.

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

Adding to 1011320322131 its reverse (1312230231101), we get a palindrome (2323550553232).

The spelling of 1011320322131 in words is "one trillion, eleven billion, three hundred twenty million, three hundred twenty-two thousand, one hundred thirty-one".