34121231251 has 4 divisors (see below), whose sum is σ = 34182490752. Its totient is φ = 34059971752.

The previous prime is 34121231203. The next prime is 34121231293. The reversal of 34121231251 is 15213212143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15213212143 = 65827 ⋅231109.

It is a cyclic number.

It is not a de Polignac number, because 34121231251 - 2²⁷ = 33987013523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34121231051) 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, 30628915 + ... + 30630028.

It is an arithmetic number, because the mean of its divisors is an integer number (8545622688).

Almost surely, 2^34121231251 is an apocalyptic number.

34121231251 is a deficient number, since it is larger than the sum of its proper divisors (61259501).

34121231251 is an equidigital number, since it uses as much as digits as its factorization.

34121231251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61259500.

The product of its digits is 1440, while the sum is 25.

Adding to 34121231251 its reverse (15213212143), we get a palindrome (49334443394).

The spelling of 34121231251 in words is "thirty-four billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred fifty-one".