100551331523 has 2 divisors, whose sum is σ = 100551331524. Its totient is φ = 100551331522.

The previous prime is 100551331513. The next prime is 100551331547. The reversal of 100551331523 is 325133155001.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (325133155001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100551331523 - 2²⁸ = 100282896067 is a prime.

It is a super-2 number, since 2×100551331523² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100551331513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50275665761 + 50275665762.

It is an arithmetic number, because the mean of its divisors is an integer number (50275665762).

Almost surely, 2^100551331523 is an apocalyptic number.

100551331523 is a deficient number, since it is larger than the sum of its proper divisors (1).

100551331523 is an equidigital number, since it uses as much as digits as its factorization.

100551331523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 100551331523 its reverse (325133155001), we get a palindrome (425684486524).

The spelling of 100551331523 in words is "one hundred billion, five hundred fifty-one million, three hundred thirty-one thousand, five hundred twenty-three".