1230545421 has 12 divisors (see below), whose sum is σ = 2031376672. Its totient is φ = 703168776.

The previous prime is 1230545413. The next prime is 1230545447. The reversal of 1230545421 is 1245450321.

1230545421 is a `hidden beast` number, since 1 + 230 + 5 + 4 + 5 + 421 = 666.

It is not a de Polignac number, because 1230545421 - 2³ = 1230545413 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 (1230545461) 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, 9766171 + ... + 9766296.

Almost surely, 2^1230545421 is an apocalyptic number.

It is an amenable number.

1230545421 is a deficient number, since it is larger than the sum of its proper divisors (800831251).

1230545421 is a wasteful number, since it uses less digits than its factorization.

1230545421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19532480 (or 19532477 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1230545421 is about 35079.1308472716. The cubic root of 1230545421 is about 1071.5996166316.

Adding to 1230545421 its reverse (1245450321), we get a palindrome (2475995742).

The spelling of 1230545421 in words is "one billion, two hundred thirty million, five hundred forty-five thousand, four hundred twenty-one".