202421423432 has 32 divisors (see below), whose sum is σ = 399908340000. Its totient is φ = 95789662848.

The previous prime is 202421423431. The next prime is 202421423443. The reversal of 202421423432 is 234324124202.

It is a junction number, because it is equal to n+sod(n) for n = 202421423395 and 202421423404.

It is not an unprimeable number, because it can be changed into a prime (202421423431) 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, 498557 + ... + 808332.

It is an arithmetic number, because the mean of its divisors is an integer number (12497135625).

Almost surely, 2^202421423432 is an apocalyptic number.

It is an amenable number.

202421423432 is a deficient number, since it is larger than the sum of its proper divisors (197486916568).

202421423432 is a wasteful number, since it uses less digits than its factorization.

202421423432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307933 (or 1307929 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 202421423432 its reverse (234324124202), we get a palindrome (436745547634).

The spelling of 202421423432 in words is "two hundred two billion, four hundred twenty-one million, four hundred twenty-three thousand, four hundred thirty-two".