203444143130 has 32 divisors (see below), whose sum is σ = 374026968576. Its totient is φ = 79638544384.

The previous prime is 203444143109. The next prime is 203444143141. The reversal of 203444143130 is 31341444302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 203444143093 and 203444143102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9133667 + ... + 9155913.

It is an arithmetic number, because the mean of its divisors is an integer number (11688342768).

Almost surely, 2^203444143130 is an apocalyptic number.

203444143130 is a deficient number, since it is larger than the sum of its proper divisors (170582825446).

203444143130 is a wasteful number, since it uses less digits than its factorization.

203444143130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41758.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 203444143130 its reverse (31341444302), we get a palindrome (234785587432).

The spelling of 203444143130 in words is "two hundred three billion, four hundred forty-four million, one hundred forty-three thousand, one hundred thirty".