203021421313112 has 16 divisors (see below), whose sum is σ = 400700173644600. Its totient is φ = 96168041674560.

The previous prime is 203021421313091. The next prime is 203021421313199. The reversal of 203021421313112 is 211313124120302.

It is a super-2 number, since 2×203021421313112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667833622589 + ... + 667833622892.

Almost surely, 2^{203021421313112} is an apocalyptic number.

It is an amenable number.

203021421313112 is a deficient number, since it is larger than the sum of its proper divisors (197678752331488).

203021421313112 is a wasteful number, since it uses less digits than its factorization.

203021421313112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335667245506 (or 1335667245502 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 203021421313112 its reverse (211313124120302), we get a palindrome (414334545433414).

The spelling of 203021421313112 in words is "two hundred three trillion, twenty-one billion, four hundred twenty-one million, three hundred thirteen thousand, one hundred twelve".