2100350051 has 4 divisors (see below), whose sum is σ = 2223900072. Its totient is φ = 1976800032.

The previous prime is 2100350023. The next prime is 2100350059. The reversal of 2100350051 is 1500530012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100350051 - 2³⁰ = 1026608227 is a prime.

It is a super-2 number, since 2×2100350051² = 8822940673471405202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 123550003 = 2100350051 / (2 + 1 + 0 + 0 + 3 + 5 + 0 + 0 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100350059) 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, 61774985 + ... + 61775018.

It is an arithmetic number, because the mean of its divisors is an integer number (555975018).

Almost surely, 2^2100350051 is an apocalyptic number.

2100350051 is a deficient number, since it is larger than the sum of its proper divisors (123550021).

2100350051 is a wasteful number, since it uses less digits than its factorization.

2100350051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123550020.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 2100350051 is about 45829.5761599428. The cubic root of 2100350051 is about 1280.6503146878.

Adding to 2100350051 its reverse (1500530012), we get a palindrome (3600880063).

The spelling of 2100350051 in words is "two billion, one hundred million, three hundred fifty thousand, fifty-one".