1231421414251 has 8 divisors (see below), whose sum is σ = 1427160432384. Its totient is φ = 1040637814440.

The previous prime is 1231421414221. The next prime is 1231421414257. The reversal of 1231421414251 is 1524141241321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1231421414251 - 2⁵ = 1231421414219 is a prime.

It is a super-3 number, since 3×1231421414251³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231421414257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1238854045 + ... + 1238855038.

It is an arithmetic number, because the mean of its divisors is an integer number (178395054048).

Almost surely, 2^{1231421414251} is an apocalyptic number.

1231421414251 is a deficient number, since it is larger than the sum of its proper divisors (195739018133).

1231421414251 is an equidigital number, since it uses as much as digits as its factorization.

1231421414251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477709161.

The product of its digits is 7680, while the sum is 31.

Adding to 1231421414251 its reverse (1524141241321), we get a palindrome (2755562655572).

The spelling of 1231421414251 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-one million, four hundred fourteen thousand, two hundred fifty-one".