10143040442 has 4 divisors (see below), whose sum is σ = 15214560666. Its totient is φ = 5071520220.

The previous prime is 10143040433. The next prime is 10143040451. The reversal of 10143040442 is 24404034101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24404034101 = 73 ⋅334301837.

It is an interprime number because it is at equal distance from previous prime (10143040433) and next prime (10143040451).

It can be written as a sum of positive squares in only one way, i.e., 7952894041 + 2190146401 = 89179^2 + 46799^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2535760109 + ... + 2535760112.

Almost surely, 2^10143040442 is an apocalyptic number.

10143040442 is a deficient number, since it is larger than the sum of its proper divisors (5071520224).

10143040442 is an equidigital number, since it uses as much as digits as its factorization.

10143040442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071520223.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10143040442 its reverse (24404034101), we get a palindrome (34547074543).

The spelling of 10143040442 in words is "ten billion, one hundred forty-three million, forty thousand, four hundred forty-two".