10140343442 has 4 divisors (see below), whose sum is σ = 15210515166. Its totient is φ = 5070171720.

The previous prime is 10140343441. The next prime is 10140343471. The reversal of 10140343442 is 24434304101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24434304101 = 94153 ⋅259517.

It can be written as a sum of positive squares in only one way, i.e., 7565694361 + 2574649081 = 86981^2 + 50741^2 .

It is not an unprimeable number, because it can be changed into a prime (10140343441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2535085859 + ... + 2535085862.

Almost surely, 2^10140343442 is an apocalyptic number.

10140343442 is a deficient number, since it is larger than the sum of its proper divisors (5070171724).

10140343442 is an equidigital number, since it uses as much as digits as its factorization.

10140343442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070171723.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 10140343442 its reverse (24434304101), we get a palindrome (34574647543).

The spelling of 10140343442 in words is "ten billion, one hundred forty million, three hundred forty-three thousand, four hundred forty-two".