1421302312 has 16 divisors (see below), whose sum is σ = 2736967860. Its totient is φ = 691444224.

The previous prime is 1421302307. The next prime is 1421302313. The reversal of 1421302312 is 2132031241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1307111716 + 114190596 = 36154^2 + 10686^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1421302312.

It is not an unprimeable number, because it can be changed into a prime (1421302313) 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, 2400553 + ... + 2401144.

Almost surely, 2^1421302312 is an apocalyptic number.

It is an amenable number.

1421302312 is a deficient number, since it is larger than the sum of its proper divisors (1315665548).

1421302312 is a wasteful number, since it uses less digits than its factorization.

1421302312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801740 (or 4801736 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1421302312 is about 37700.1632887710. The cubic root of 1421302312 is about 1124.3343715459.

Adding to 1421302312 its reverse (2132031241), we get a palindrome (3553333553).

The spelling of 1421302312 in words is "one billion, four hundred twenty-one million, three hundred two thousand, three hundred twelve".