101223432404123 has 4 divisors (see below), whose sum is σ = 102734229902760. Its totient is φ = 99712634905488.

The previous prime is 101223432404093. The next prime is 101223432404183. The reversal of 101223432404123 is 321404234322101.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101223432404123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101223432404123.

It is not an unprimeable number, because it can be changed into a prime (101223432404183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755398749218 + ... + 755398749351.

It is an arithmetic number, because the mean of its divisors is an integer number (25683557475690).

Almost surely, 2^{101223432404123} is an apocalyptic number.

101223432404123 is a deficient number, since it is larger than the sum of its proper divisors (1510797498637).

101223432404123 is an equidigital number, since it uses as much as digits as its factorization.

101223432404123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510797498636.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 101223432404123 its reverse (321404234322101), we get a palindrome (422627666726224).

The spelling of 101223432404123 in words is "one hundred one trillion, two hundred twenty-three billion, four hundred thirty-two million, four hundred four thousand, one hundred twenty-three".