203213022142 has 32 divisors (see below), whose sum is σ = 347589194400. Its totient is φ = 88854240384.

The previous prime is 203213022137. The next prime is 203213022143. The reversal of 203213022142 is 241220312302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203213022143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1133563 + ... + 1300534.

It is an arithmetic number, because the mean of its divisors is an integer number (10862162325).

Almost surely, 2^203213022142 is an apocalyptic number.

203213022142 is a deficient number, since it is larger than the sum of its proper divisors (144376172258).

203213022142 is a wasteful number, since it uses less digits than its factorization.

203213022142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434157 (or 2434131 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 203213022142 its reverse (241220312302), we get a palindrome (444433334444).

The spelling of 203213022142 in words is "two hundred three billion, two hundred thirteen million, twenty-two thousand, one hundred forty-two".