10251421504231 has 4 divisors (see below), whose sum is σ = 10251463339152. Its totient is φ = 10251379669312.

The previous prime is 10251421504157. The next prime is 10251421504241. The reversal of 10251421504231 is 13240512415201.

10251421504231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10251421504231 - 2²⁵ = 10251387949799 is a prime.

It is a super-2 number, since 2×10251421504231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10251421504193 and 10251421504202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10251421504241) 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, 20547715 + ... + 21040708.

It is an arithmetic number, because the mean of its divisors is an integer number (2562865834788).

Almost surely, 2^{10251421504231} is an apocalyptic number.

10251421504231 is a deficient number, since it is larger than the sum of its proper divisors (41834921).

10251421504231 is an equidigital number, since it uses as much as digits as its factorization.

10251421504231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41834920.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 10251421504231 its reverse (13240512415201), we get a palindrome (23491933919432).

The spelling of 10251421504231 in words is "ten trillion, two hundred fifty-one billion, four hundred twenty-one million, five hundred four thousand, two hundred thirty-one".