1405402023312 has 120 divisors (see below), whose sum is σ = 4599591998144. Its totient is φ = 392205203712.

The previous prime is 1405402023299. The next prime is 1405402023313. The reversal of 1405402023312 is 2133202045041.

1405402023312 is a `hidden beast` number, since 1 + 405 + 4 + 0 + 20 + 233 + 1 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (1405402023313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16168843 + ... + 16255530.

Almost surely, 2^{1405402023312} is an apocalyptic number.

1405402023312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1405402023312 is an abundant number, since it is smaller than the sum of its proper divisors (3194189974832).

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

1405402023312 is a wasteful number, since it uses less digits than its factorization.

1405402023312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32424437 (or 32424428 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1405402023312 its reverse (2133202045041), we get a palindrome (3538604068353).

The spelling of 1405402023312 in words is "one trillion, four hundred five billion, four hundred two million, twenty-three thousand, three hundred twelve".