1421411431 has 16 divisors (see below), whose sum is σ = 1622384640. Its totient is φ = 1232698720.

The previous prime is 1421411419. The next prime is 1421411441. The reversal of 1421411431 is 1341141241.

It is not a de Polignac number, because 1421411431 - 2¹³ = 1421403239 is a prime.

It is a super-2 number, since 2×1421411431² = 4040820912354935522, 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 (1421411441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89565 + ... + 104233.

It is an arithmetic number, because the mean of its divisors is an integer number (101399040).

Almost surely, 2^1421411431 is an apocalyptic number.

1421411431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1421411431 is a deficient number, since it is larger than the sum of its proper divisors (200973209).

1421411431 is a wasteful number, since it uses less digits than its factorization.

1421411431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15086.

The product of its digits is 384, while the sum is 22.

The square root of 1421411431 is about 37701.6104563187. The cubic root of 1421411431 is about 1124.3631440084.

Adding to 1421411431 its reverse (1341141241), we get a palindrome (2762552672).

The spelling of 1421411431 in words is "one billion, four hundred twenty-one million, four hundred eleven thousand, four hundred thirty-one".