1131131133031 has 4 divisors (see below), whose sum is σ = 1131246670464. Its totient is φ = 1131015595600.

The previous prime is 1131131132993. The next prime is 1131131133037. The reversal of 1131131133031 is 1303311311311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1131131133031 - 2¹³ = 1131131124839 is a prime.

It is a super-2 number, since 2×1131131133031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131131132993 and 1131131133011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131131133037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57754030 + ... + 57773611.

It is an arithmetic number, because the mean of its divisors is an integer number (282811667616).

Almost surely, 2^{1131131133031} is an apocalyptic number.

1131131133031 is a deficient number, since it is larger than the sum of its proper divisors (115537433).

1131131133031 is an equidigital number, since it uses as much as digits as its factorization.

1131131133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115537432.

The product of its (nonzero) digits is 243, while the sum is 22.

Adding to 1131131133031 its reverse (1303311311311), we get a palindrome (2434442444342).

The spelling of 1131131133031 in words is "one trillion, one hundred thirty-one billion, one hundred thirty-one million, one hundred thirty-three thousand, thirty-one".