42099100623 has 20 divisors (see below), whose sum is σ = 62909976360. Its totient is φ = 28056607632.

The previous prime is 42099100619. The next prime is 42099100627. The reversal of 42099100623 is 32600199024.

42099100623 is a `hidden beast` number, since 4 + 20 + 9 + 9 + 1 + 0 + 0 + 623 = 666.

It is an interprime number because it is at equal distance from previous prime (42099100619) and next prime (42099100627).

It is not a de Polignac number, because 42099100623 - 2² = 42099100619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42099100627) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 158461 + ... + 330617.

It is an arithmetic number, because the mean of its divisors is an integer number (3145498818).

Almost surely, 2^42099100623 is an apocalyptic number.

42099100623 is a deficient number, since it is larger than the sum of its proper divisors (20810875737).

42099100623 is a wasteful number, since it uses less digits than its factorization.

42099100623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175188 (or 175179 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

Adding to 42099100623 its reverse (32600199024), we get a palindrome (74699299647).

The spelling of 42099100623 in words is "forty-two billion, ninety-nine million, one hundred thousand, six hundred twenty-three".