89940229031 has 2 divisors, whose sum is σ = 89940229032. Its totient is φ = 89940229030.

The previous prime is 89940228967. The next prime is 89940229033. The reversal of 89940229031 is 13092204998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89940229031 - 2⁶ = 89940228967 is a prime.

It is a super-2 number, since 2×89940229031² (a number of 23 digits) contains 22 as substring.

Together with 89940229033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89940229033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44970114515 + 44970114516.

It is an arithmetic number, because the mean of its divisors is an integer number (44970114516).

Almost surely, 2^89940229031 is an apocalyptic number.

89940229031 is a deficient number, since it is larger than the sum of its proper divisors (1).

89940229031 is an equidigital number, since it uses as much as digits as its factorization.

89940229031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 89940229031 in words is "eighty-nine billion, nine hundred forty million, two hundred twenty-nine thousand, thirty-one".