101223110999 has 4 divisors (see below), whose sum is σ = 107177411664. Its totient is φ = 95268810336.

The previous prime is 101223110969. The next prime is 101223111013. The reversal of 101223110999 is 999011322101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999011322101 = 13 ⋅76847024777.

It is a cyclic number.

It is not a de Polignac number, because 101223110999 - 2¹⁶ = 101223045463 is a prime.

It is a super-2 number, since 2×101223110999² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101223110939) 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, 2977150307 + ... + 2977150340.

It is an arithmetic number, because the mean of its divisors is an integer number (26794352916).

Almost surely, 2^101223110999 is an apocalyptic number.

101223110999 is a deficient number, since it is larger than the sum of its proper divisors (5954300665).

101223110999 is an equidigital number, since it uses as much as digits as its factorization.

101223110999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954300664.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 101223110999 in words is "one hundred one billion, two hundred twenty-three million, one hundred ten thousand, nine hundred ninety-nine".