203424432442 has 16 divisors (see below), whose sum is σ = 380430107712. Its totient is φ = 79256272320.

The previous prime is 203424432433. The next prime is 203424432461. The reversal of 203424432442 is 244234424302.

It is a junction number, because it is equal to n+sod(n) for n = 203424432398 and 203424432407.

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, 660468783 + ... + 660469090.

It is an arithmetic number, because the mean of its divisors is an integer number (23776881732).

Almost surely, 2^203424432442 is an apocalyptic number.

203424432442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

203424432442 is a deficient number, since it is larger than the sum of its proper divisors (177005675270).

203424432442 is a wasteful number, since it uses less digits than its factorization.

203424432442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320937893.

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 203424432442 its reverse (244234424302), we get a palindrome (447658856744).

The spelling of 203424432442 in words is "two hundred three billion, four hundred twenty-four million, four hundred thirty-two thousand, four hundred forty-two".