1421311432 has 16 divisors (see below), whose sum is σ = 2684413260. Its totient is φ = 705467904.

The previous prime is 1421311421. The next prime is 1421311433. The reversal of 1421311432 is 2341131241.

It can be written as a sum of positive squares in 2 ways, for example, as 1332688036 + 88623396 = 36506^2 + 9414^2 .

It is not an unprimeable number, because it can be changed into a prime (1421311433) 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, 647313 + ... + 649504.

Almost surely, 2^1421311432 is an apocalyptic number.

It is an amenable number.

1421311432 is a deficient number, since it is larger than the sum of its proper divisors (1263101828).

1421311432 is a wasteful number, since it uses less digits than its factorization.

1421311432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296960 (or 1296956 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1421311432 is about 37700.2842429603. The cubic root of 1421311432 is about 1124.3367763609.

Adding to 1421311432 its reverse (2341131241), we get a palindrome (3762442673).

The spelling of 1421311432 in words is "one billion, four hundred twenty-one million, three hundred eleven thousand, four hundred thirty-two".