38121203 has 4 divisors (see below), whose sum is σ = 38377200. Its totient is φ = 37865208.

The previous prime is 38121199. The next prime is 38121221. The reversal of 38121203 is 30212183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30212183 = 811 ⋅37253.

It is a cyclic number.

It is not a de Polignac number, because 38121203 - 2² = 38121199 is a prime.

It is a super-2 number, since 2×38121203² = 2906452236334418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38121233) 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, 127775 + ... + 128072.

It is an arithmetic number, because the mean of its divisors is an integer number (9594300).

Almost surely, 2^38121203 is an apocalyptic number.

38121203 is a deficient number, since it is larger than the sum of its proper divisors (255997).

38121203 is a wasteful number, since it uses less digits than its factorization.

38121203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255996.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 38121203 is about 6174.2370378857. The cubic root of 38121203 is about 336.5546012443.

Adding to 38121203 its reverse (30212183), we get a palindrome (68333386).

The spelling of 38121203 in words is "thirty-eight million, one hundred twenty-one thousand, two hundred three".