1131200331031 has 8 divisors (see below), whose sum is σ = 1211199298560. Its totient is φ = 1052696671488.

The previous prime is 1131200331011. The next prime is 1131200331169. The reversal of 1131200331031 is 1301330021311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131200331031 - 2¹⁹ = 1131199806743 is a prime.

It is a super-2 number, since 2×1131200331031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131200331011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373825431 + ... + 373828456.

It is an arithmetic number, because the mean of its divisors is an integer number (151399912320).

Almost surely, 2^{1131200331031} is an apocalyptic number.

1131200331031 is a deficient number, since it is larger than the sum of its proper divisors (79998967529).

1131200331031 is an equidigital number, since it uses as much as digits as its factorization.

1131200331031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747653993.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1131200331031 its reverse (1301330021311), we get a palindrome (2432530352342).

The spelling of 1131200331031 in words is "one trillion, one hundred thirty-one billion, two hundred million, three hundred thirty-one thousand, thirty-one".