1421123312 has 40 divisors (see below), whose sum is σ = 3148881792. Its totient is φ = 608644800.

The previous prime is 1421123311. The next prime is 1421123321. The reversal of 1421123312 is 2133211241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421123311) 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, 212987 + ... + 219557.

Almost surely, 2^1421123312 is an apocalyptic number.

It is an amenable number.

1421123312 is an abundant number, since it is smaller than the sum of its proper divisors (1727758480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421123312 is a wasteful number, since it uses less digits than its factorization.

1421123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8517 (or 8511 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 1421123312 is about 37697.7892189980. The cubic root of 1421123312 is about 1124.2871696944.

Adding to 1421123312 its reverse (2133211241), we get a palindrome (3554334553).

The spelling of 1421123312 in words is "one billion, four hundred twenty-one million, one hundred twenty-three thousand, three hundred twelve".