101423442434 has 4 divisors (see below), whose sum is σ = 152135163654. Its totient is φ = 50711721216.

The previous prime is 101423442431. The next prime is 101423442479. The reversal of 101423442434 is 434244324101.

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

It can be written as a sum of positive squares in only one way, i.e., 89758362409 + 11665080025 = 299597^2 + 108005^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101423442434.

It is not an unprimeable number, because it can be changed into a prime (101423442431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25355860607 + ... + 25355860610.

Almost surely, 2^101423442434 is an apocalyptic number.

101423442434 is a deficient number, since it is larger than the sum of its proper divisors (50711721220).

101423442434 is an equidigital number, since it uses as much as digits as its factorization.

101423442434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50711721219.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 101423442434 its reverse (434244324101), we get a palindrome (535667766535).

The spelling of 101423442434 in words is "one hundred one billion, four hundred twenty-three million, four hundred forty-two thousand, four hundred thirty-four".