1131421112331 has 32 divisors (see below), whose sum is σ = 1544825610240. Its totient is φ = 736363872000.

The previous prime is 1131421112329. The next prime is 1131421112443. The reversal of 1131421112331 is 1332111241311.

It is not a de Polignac number, because 1131421112331 - 2¹ = 1131421112329 is a prime.

It is a super-2 number, since 2×1131421112331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131421112131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111894966 + ... + 111905076.

It is an arithmetic number, because the mean of its divisors is an integer number (48275800320).

Almost surely, 2^{1131421112331} is an apocalyptic number.

1131421112331 is a deficient number, since it is larger than the sum of its proper divisors (413404497909).

1131421112331 is a wasteful number, since it uses less digits than its factorization.

1131421112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15347.

The product of its digits is 432, while the sum is 24.

Adding to 1131421112331 its reverse (1332111241311), we get a palindrome (2463532353642).

The spelling of 1131421112331 in words is "one trillion, one hundred thirty-one billion, four hundred twenty-one million, one hundred twelve thousand, three hundred thirty-one".