10203312142 has 4 divisors (see below), whose sum is σ = 15304968216. Its totient is φ = 5101656070.

The previous prime is 10203312139. The next prime is 10203312199. The reversal of 10203312142 is 24121330201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550828034 + ... + 2550828037.

It is an arithmetic number, because the mean of its divisors is an integer number (3826242054).

Almost surely, 2^10203312142 is an apocalyptic number.

10203312142 is a deficient number, since it is larger than the sum of its proper divisors (5101656074).

10203312142 is an equidigital number, since it uses as much as digits as its factorization.

10203312142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101656073.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10203312142 its reverse (24121330201), we get a palindrome (34324642343).

The spelling of 10203312142 in words is "ten billion, two hundred three million, three hundred twelve thousand, one hundred forty-two".