100237199987 has 4 divisors (see below), whose sum is σ = 101936135640. Its totient is φ = 98538264336.

The previous prime is 100237199963. The next prime is 100237200023. The reversal of 100237199987 is 789991732001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789991732001 = 27901 ⋅28314101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100237199987 is a prime.

It is a super-2 number, since 2×100237199987² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100237129987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849467738 + ... + 849467855.

It is an arithmetic number, because the mean of its divisors is an integer number (25484033910).

Almost surely, 2^100237199987 is an apocalyptic number.

100237199987 is a deficient number, since it is larger than the sum of its proper divisors (1698935653).

100237199987 is an equidigital number, since it uses as much as digits as its factorization.

100237199987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698935652.

The product of its (nonzero) digits is 1714608, while the sum is 56.

The spelling of 100237199987 in words is "one hundred billion, two hundred thirty-seven million, one hundred ninety-nine thousand, nine hundred eighty-seven".