2135112300251 has 16 divisors (see below), whose sum is σ = 2459679425280. Its totient is φ = 1815489456480.

The previous prime is 2135112300193. The next prime is 2135112300311. The reversal of 2135112300251 is 1520032115312.

It is not a de Polignac number, because 2135112300251 - 2¹⁴ = 2135112283867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2135112300251.

It is not an unprimeable number, because it can be changed into a prime (2135112303251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1900916 + ... + 2807793.

It is an arithmetic number, because the mean of its divisors is an integer number (153729964080).

Almost surely, 2^{2135112300251} is an apocalyptic number.

2135112300251 is a deficient number, since it is larger than the sum of its proper divisors (324567125029).

2135112300251 is a wasteful number, since it uses less digits than its factorization.

2135112300251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4709234.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 2135112300251 its reverse (1520032115312), we get a palindrome (3655144415563).

The spelling of 2135112300251 in words is "two trillion, one hundred thirty-five billion, one hundred twelve million, three hundred thousand, two hundred fifty-one".