3420251231 has 4 divisors (see below), whose sum is σ = 3426573864. Its totient is φ = 3413928600.

The previous prime is 3420251209. The next prime is 3420251287. The reversal of 3420251231 is 1321520243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1321520243 = 19 ⋅69553697.

It is a cyclic number.

It is not a de Polignac number, because 3420251231 - 2⁶ = 3420251167 is a prime.

It is a super-2 number, since 2×3420251231² = 23396236966314030722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3420251197 and 3420251206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420251431) 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, 3160505 + ... + 3161586.

It is an arithmetic number, because the mean of its divisors is an integer number (856643466).

Almost surely, 2^3420251231 is an apocalyptic number.

3420251231 is a deficient number, since it is larger than the sum of its proper divisors (6322633).

3420251231 is an equidigital number, since it uses as much as digits as its factorization.

3420251231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6322632.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 3420251231 is about 58482.9140091360. The cubic root of 3420251231 is about 1506.6741458816.

Adding to 3420251231 its reverse (1321520243), we get a palindrome (4741771474).

The spelling of 3420251231 in words is "three billion, four hundred twenty million, two hundred fifty-one thousand, two hundred thirty-one".