1421332312 has 8 divisors (see below), whose sum is σ = 2664998100. Its totient is φ = 710666152.

The previous prime is 1421332309. The next prime is 1421332321. The reversal of 1421332312 is 2132331241.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1421332312² = 4040371082270530688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88833262 + ... + 88833277.

Almost surely, 2^1421332312 is an apocalyptic number.

It is an amenable number.

1421332312 is a deficient number, since it is larger than the sum of its proper divisors (1243665788).

1421332312 is a wasteful number, since it uses less digits than its factorization.

1421332312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177666545 (or 177666541 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 1421332312 is about 37700.5611629323. The cubic root of 1421332312 is about 1124.3422820829.

Adding to 1421332312 its reverse (2132331241), we get a palindrome (3553663553).

The spelling of 1421332312 in words is "one billion, four hundred twenty-one million, three hundred thirty-two thousand, three hundred twelve".