1131331310121 has 16 divisors (see below), whose sum is σ = 1557311090688. Its totient is φ = 729792762000.

The previous prime is 1131331310119. The next prime is 1131331310129. The reversal of 1131331310121 is 1210131331311.

It is not a de Polignac number, because 1131331310121 - 2¹ = 1131331310119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131331310129) 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, 123381 + ... + 1509266.

It is an arithmetic number, because the mean of its divisors is an integer number (97331943168).

Almost surely, 2^{1131331310121} is an apocalyptic number.

It is an amenable number.

1131331310121 is a deficient number, since it is larger than the sum of its proper divisors (425979780567).

1131331310121 is a wasteful number, since it uses less digits than its factorization.

1131331310121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640132.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1131331310121 its reverse (1210131331311), we get a palindrome (2341462641432).

The spelling of 1131331310121 in words is "one trillion, one hundred thirty-one billion, three hundred thirty-one million, three hundred ten thousand, one hundred twenty-one".