1420211231 has 8 divisors (see below), whose sum is σ = 1430946000. Its totient is φ = 1409492800.

The previous prime is 1420211227. The next prime is 1420211281. The reversal of 1420211231 is 1321120241.

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

It is a cyclic number.

It is not a de Polignac number, because 1420211231 - 2² = 1420211227 is a prime.

It is a super-2 number, since 2×1420211231² = 4033999881317070722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420211201) 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, 212915 + ... + 219483.

It is an arithmetic number, because the mean of its divisors is an integer number (178868250).

Almost surely, 2^1420211231 is an apocalyptic number.

1420211231 is a deficient number, since it is larger than the sum of its proper divisors (10734769).

1420211231 is a wasteful number, since it uses less digits than its factorization.

1420211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8169.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1420211231 is about 37685.6900029706. The cubic root of 1420211231 is about 1124.0465946477.

Adding to 1420211231 its reverse (1321120241), we get a palindrome (2741331472).

The spelling of 1420211231 in words is "one billion, four hundred twenty million, two hundred eleven thousand, two hundred thirty-one".