203012030122 has 16 divisors (see below), whose sum is σ = 336752212032. Its totient is φ = 91014109920.

The previous prime is 203012030113. The next prime is 203012030191. The reversal of 203012030122 is 221030210302.

It is a junction number, because it is equal to n+sod(n) for n = 203012030096 and 203012030105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63202638 + ... + 63205849.

It is an arithmetic number, because the mean of its divisors is an integer number (21047013252).

Almost surely, 2^203012030122 is an apocalyptic number.

203012030122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

203012030122 is a deficient number, since it is larger than the sum of its proper divisors (133740181910).

203012030122 is a wasteful number, since it uses less digits than its factorization.

203012030122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126408573.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 203012030122 its reverse (221030210302), we get a palindrome (424042240424).

The spelling of 203012030122 in words is "two hundred three billion, twelve million, thirty thousand, one hundred twenty-two".