2231132131 has 4 divisors (see below), whose sum is σ = 2252793712. Its totient is φ = 2209470552.

The previous prime is 2231132119. The next prime is 2231132177. The reversal of 2231132131 is 1312311322.

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 2231132131 - 2²⁵ = 2197577699 is a prime.

It is a super-3 number, since 3×2231132131³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231132099 and 2231132108.

It is not an unprimeable number, because it can be changed into a prime (2231132231) 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 3 ways as a sum of consecutive naturals, for example, 10830636 + ... + 10830841.

It is an arithmetic number, because the mean of its divisors is an integer number (563198428).

Almost surely, 2^2231132131 is an apocalyptic number.

2231132131 is a deficient number, since it is larger than the sum of its proper divisors (21661581).

2231132131 is a wasteful number, since it uses less digits than its factorization.

2231132131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21661580.

The product of its digits is 216, while the sum is 19.

The square root of 2231132131 is about 47234.8613949485. The cubic root of 2231132131 is about 1306.6976103393.

Adding to 2231132131 its reverse (1312311322), we get a palindrome (3543443453).

The spelling of 2231132131 in words is "two billion, two hundred thirty-one million, one hundred thirty-two thousand, one hundred thirty-one".