2231257885429 has 2 divisors, whose sum is σ = 2231257885430. Its totient is φ = 2231257885428.

The previous prime is 2231257885427. The next prime is 2231257885489. The reversal of 2231257885429 is 9245887521322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1659132053329 + 572125832100 = 1288073^2 + 756390^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231257885429 - 2¹ = 2231257885427 is a prime.

It is a super-3 number, since 3×2231257885429³ (a number of 38 digits) contains 333 as substring.

Together with 2231257885427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231257885427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115628942714 + 1115628942715.

It is an arithmetic number, because the mean of its divisors is an integer number (1115628942715).

Almost surely, 2^{2231257885429} is an apocalyptic number.

It is an amenable number.

2231257885429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231257885429 is an equidigital number, since it uses as much as digits as its factorization.

2231257885429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19353600, while the sum is 58.

The spelling of 2231257885429 in words is "two trillion, two hundred thirty-one billion, two hundred fifty-seven million, eight hundred eighty-five thousand, four hundred twenty-nine".