1421323031421 has 12 divisors (see below), whose sum is σ = 2062752122080. Its totient is φ = 943057934280.

The previous prime is 1421323031407. The next prime is 1421323031467. The reversal of 1421323031421 is 1241303231241.

1421323031421 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 3 + 230 + 3 + 1 + 421 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1421323031421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421323011421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 374227441 + ... + 374231238.

Almost surely, 2^{1421323031421} is an apocalyptic number.

It is an amenable number.

1421323031421 is a deficient number, since it is larger than the sum of its proper divisors (641429090659).

1421323031421 is a wasteful number, since it uses less digits than its factorization.

1421323031421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748458896 (or 748458893 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1421323031421 its reverse (1241303231241), we get a palindrome (2662626262662).

The spelling of 1421323031421 in words is "one trillion, four hundred twenty-one billion, three hundred twenty-three million, thirty-one thousand, four hundred twenty-one".