203114223421 has 4 divisors (see below), whose sum is σ = 203116760352. Its totient is φ = 203111686492.

The previous prime is 203114223383. The next prime is 203114223427. The reversal of 203114223421 is 124322411302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203114223421 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 (203114223427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144321 + ... + 1309846.

It is an arithmetic number, because the mean of its divisors is an integer number (50779190088).

Almost surely, 2^203114223421 is an apocalyptic number.

It is an amenable number.

203114223421 is a deficient number, since it is larger than the sum of its proper divisors (2536931).

203114223421 is an equidigital number, since it uses as much as digits as its factorization.

203114223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536930.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 203114223421 its reverse (124322411302), we get a palindrome (327436634723).

The spelling of 203114223421 in words is "two hundred three billion, one hundred fourteen million, two hundred twenty-three thousand, four hundred twenty-one".