2231120131 has 2 divisors, whose sum is σ = 2231120132. Its totient is φ = 2231120130.

The previous prime is 2231120077. The next prime is 2231120147. The reversal of 2231120131 is 1310211322.

It is an a-pointer prime, because the next prime (2231120147) can be obtained adding 2231120131 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2231120131 - 2²¹ = 2229022979 is a prime.

It is a super-3 number, since 3×2231120131³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2231120431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115560065 + 1115560066.

It is an arithmetic number, because the mean of its divisors is an integer number (1115560066).

Almost surely, 2^2231120131 is an apocalyptic number.

2231120131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231120131 is an equidigital number, since it uses as much as digits as its factorization.

2231120131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2231120131 is about 47234.7343699528. The cubic root of 2231120131 is about 1306.6952676722.

Adding to 2231120131 its reverse (1310211322), we get a palindrome (3541331453).

The spelling of 2231120131 in words is "two billion, two hundred thirty-one million, one hundred twenty thousand, one hundred thirty-one".