10123312042 has 8 divisors (see below), whose sum is σ = 15263647236. Its totient is φ = 5035429632.

The previous prime is 10123312039. The next prime is 10123312057. The reversal of 10123312042 is 24021332101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9925937641 + 197374401 = 99629^2 + 14049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13112713 + ... + 13113484.

Almost surely, 2^10123312042 is an apocalyptic number.

10123312042 is a deficient number, since it is larger than the sum of its proper divisors (5140335194).

10123312042 is a wasteful number, since it uses less digits than its factorization.

10123312042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26226392.

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

Adding to 10123312042 its reverse (24021332101), we get a palindrome (34144644143).

The spelling of 10123312042 in words is "ten billion, one hundred twenty-three million, three hundred twelve thousand, forty-two".