43142002991 has 2 divisors, whose sum is σ = 43142002992. Its totient is φ = 43142002990.

The previous prime is 43142002961. The next prime is 43142003017. The reversal of 43142002991 is 19920024134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43142002991 - 2¹⁴ = 43141986607 is a prime.

It is a super-2 number, since 2×43142002991² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43142002901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21571001495 + 21571001496.

It is an arithmetic number, because the mean of its divisors is an integer number (21571001496).

Almost surely, 2^43142002991 is an apocalyptic number.

43142002991 is a deficient number, since it is larger than the sum of its proper divisors (1).

43142002991 is an equidigital number, since it uses as much as digits as its factorization.

43142002991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 43142002991 in words is "forty-three billion, one hundred forty-two million, two thousand, nine hundred ninety-one".