314140021421 has 4 divisors (see below), whose sum is σ = 320823851712. Its totient is φ = 307456191132.

The previous prime is 314140021417. The next prime is 314140021451. The reversal of 314140021421 is 124120041413.

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, and also an emirpimes, since its reverse is a distinct semiprime: 124120041413 = 43 ⋅2886512591.

It is a cyclic number.

It is not a de Polignac number, because 314140021421 - 2² = 314140021417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314140021411) 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, 3341915075 + ... + 3341915168.

It is an arithmetic number, because the mean of its divisors is an integer number (80205962928).

Almost surely, 2^314140021421 is an apocalyptic number.

It is an amenable number.

314140021421 is a deficient number, since it is larger than the sum of its proper divisors (6683830291).

314140021421 is an equidigital number, since it uses as much as digits as its factorization.

314140021421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6683830290.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 314140021421 its reverse (124120041413), we get a palindrome (438260062834).

The spelling of 314140021421 in words is "three hundred fourteen billion, one hundred forty million, twenty-one thousand, four hundred twenty-one".