10405201042 has 4 divisors (see below), whose sum is σ = 15607801566. Its totient is φ = 5202600520.

The previous prime is 10405201003. The next prime is 10405201043. The reversal of 10405201042 is 24010250401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24010250401 = 29 ⋅827939669.

It can be written as a sum of positive squares in only one way, i.e., 10128610881 + 276590161 = 100641^2 + 16631^2 .

It is not an unprimeable number, because it can be changed into a prime (10405201043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2601300259 + ... + 2601300262.

Almost surely, 2^10405201042 is an apocalyptic number.

10405201042 is a deficient number, since it is larger than the sum of its proper divisors (5202600524).

10405201042 is an equidigital number, since it uses as much as digits as its factorization.

10405201042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202600523.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 10405201042 its reverse (24010250401), we get a palindrome (34415451443).

The spelling of 10405201042 in words is "ten billion, four hundred five million, two hundred one thousand, forty-two".