100601005551051 has 4 divisors (see below), whose sum is σ = 134134674068072. Its totient is φ = 67067337034032.

The previous prime is 100601005551037. The next prime is 100601005551083. The reversal of 100601005551051 is 150155500106001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100601005551051 - 2¹⁷ = 100601005419979 is a prime.

It is a super-4 number, since 4×100601005551051⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100601005551451) 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, 16766834258506 + ... + 16766834258511.

It is an arithmetic number, because the mean of its divisors is an integer number (33533668517018).

Almost surely, 2^{100601005551051} is an apocalyptic number.

100601005551051 is a deficient number, since it is larger than the sum of its proper divisors (33533668517021).

100601005551051 is an equidigital number, since it uses as much as digits as its factorization.

100601005551051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33533668517020.

The product of its (nonzero) digits is 3750, while the sum is 30.

Adding to 100601005551051 its reverse (150155500106001), we get a palindrome (250756505657052).

The spelling of 100601005551051 in words is "one hundred trillion, six hundred one billion, five million, five hundred fifty-one thousand, fifty-one".