2231000432491 has 2 divisors, whose sum is σ = 2231000432492. Its totient is φ = 2231000432490.

The previous prime is 2231000432447. The next prime is 2231000432603. The reversal of 2231000432491 is 1942340001322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2231000432491 - 2⁷ = 2231000432363 is a prime.

It is a super-3 number, since 3×2231000432491³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231000432411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115500216245 + 1115500216246.

It is an arithmetic number, because the mean of its divisors is an integer number (1115500216246).

Almost surely, 2^{2231000432491} is an apocalyptic number.

2231000432491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231000432491 is an equidigital number, since it uses as much as digits as its factorization.

2231000432491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 2231000432491 in words is "two trillion, two hundred thirty-one billion, four hundred thirty-two thousand, four hundred ninety-one".