84199042231 has 2 divisors, whose sum is σ = 84199042232. Its totient is φ = 84199042230.

The previous prime is 84199042217. The next prime is 84199042243. The reversal of 84199042231 is 13224099148.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84199042231 - 2¹³ = 84199034039 is a prime.

It is a super-2 number, since 2×84199042231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84109042231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42099521115 + 42099521116.

It is an arithmetic number, because the mean of its divisors is an integer number (42099521116).

Almost surely, 2^84199042231 is an apocalyptic number.

84199042231 is a deficient number, since it is larger than the sum of its proper divisors (1).

84199042231 is an equidigital number, since it uses as much as digits as its factorization.

84199042231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 84199042231 in words is "eighty-four billion, one hundred ninety-nine million, forty-two thousand, two hundred thirty-one".