100315451987 has 2 divisors, whose sum is σ = 100315451988. Its totient is φ = 100315451986.

The previous prime is 100315451969. The next prime is 100315452001. The reversal of 100315451987 is 789154513001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100315451987 - 2¹⁴ = 100315435603 is a prime.

It is a super-2 number, since 2×100315451987² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100315451927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50157725993 + 50157725994.

It is an arithmetic number, because the mean of its divisors is an integer number (50157725994).

Almost surely, 2^100315451987 is an apocalyptic number.

100315451987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100315451987 is an equidigital number, since it uses as much as digits as its factorization.

100315451987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 44.

Adding to 100315451987 its reverse (789154513001), we get a palindrome (889469964988).

The spelling of 100315451987 in words is "one hundred billion, three hundred fifteen million, four hundred fifty-one thousand, nine hundred eighty-seven".