43251802154131 has 2 divisors, whose sum is σ = 43251802154132. Its totient is φ = 43251802154130.

The previous prime is 43251802154069. The next prime is 43251802154251. The reversal of 43251802154131 is 13145120815234.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43251802154131 - 2⁷ = 43251802154003 is a prime.

It is a super-2 number, since 2×43251802154131² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43251802154531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21625901077065 + 21625901077066.

It is an arithmetic number, because the mean of its divisors is an integer number (21625901077066).

Almost surely, 2^{43251802154131} is an apocalyptic number.

43251802154131 is a deficient number, since it is larger than the sum of its proper divisors (1).

43251802154131 is an equidigital number, since it uses as much as digits as its factorization.

43251802154131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 40.

Adding to 43251802154131 its reverse (13145120815234), we get a palindrome (56396922969365).

The spelling of 43251802154131 in words is "forty-three trillion, two hundred fifty-one billion, eight hundred two million, one hundred fifty-four thousand, one hundred thirty-one".