126103203147 has 16 divisors (see below), whose sum is σ = 172355951520. Its totient is φ = 81985508352.

The previous prime is 126103203139. The next prime is 126103203173. The reversal of 126103203147 is 741302301621.

It is a happy number.

It is not a de Polignac number, because 126103203147 - 2³ = 126103203139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126103204147) 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, 3215418 + ... + 3254399.

It is an arithmetic number, because the mean of its divisors is an integer number (10772246970).

Almost surely, 2^126103203147 is an apocalyptic number.

126103203147 is a deficient number, since it is larger than the sum of its proper divisors (46252748373).

126103203147 is an equidigital number, since it uses as much as digits as its factorization.

126103203147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469982.

The product of its (nonzero) digits is 6048, while the sum is 30.

Adding to 126103203147 its reverse (741302301621), we get a palindrome (867405504768).

The spelling of 126103203147 in words is "one hundred twenty-six billion, one hundred three million, two hundred three thousand, one hundred forty-seven".