1132131231251 has 2 divisors, whose sum is σ = 1132131231252. Its totient is φ = 1132131231250.

The previous prime is 1132131231247. The next prime is 1132131231293. The reversal of 1132131231251 is 1521321312311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1132131231251 - 2² = 1132131231247 is a prime.

It is a super-2 number, since 2×1132131231251² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1132131231251.

It is not a weakly prime, because it can be changed into another prime (1132131236251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566065615625 + 566065615626.

It is an arithmetic number, because the mean of its divisors is an integer number (566065615626).

Almost surely, 2^{1132131231251} is an apocalyptic number.

1132131231251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132131231251 is an equidigital number, since it uses as much as digits as its factorization.

1132131231251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

Adding to 1132131231251 its reverse (1521321312311), we get a palindrome (2653452543562).

The spelling of 1132131231251 in words is "one trillion, one hundred thirty-two billion, one hundred thirty-one million, two hundred thirty-one thousand, two hundred fifty-one".