2100154430001 has 4 divisors (see below), whose sum is σ = 2800205906672. Its totient is φ = 1400102953332.

The previous prime is 2100154429981. The next prime is 2100154430047. The reversal of 2100154430001 is 1000344510012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2100154430001 - 2¹⁵ = 2100154397233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100154430001.

It is not an unprimeable number, because it can be changed into a prime (2100154430051) 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, 350025738331 + ... + 350025738336.

It is an arithmetic number, because the mean of its divisors is an integer number (700051476668).

Almost surely, 2^{2100154430001} is an apocalyptic number.

It is an amenable number.

2100154430001 is a deficient number, since it is larger than the sum of its proper divisors (700051476671).

2100154430001 is an equidigital number, since it uses as much as digits as its factorization.

2100154430001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700051476670.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 2100154430001 its reverse (1000344510012), we get a palindrome (3100498940013).

The spelling of 2100154430001 in words is "two trillion, one hundred billion, one hundred fifty-four million, four hundred thirty thousand, one".