101220011123 has 8 divisors (see below), whose sum is σ = 126196377600. Its totient is φ = 78872735880.

The previous prime is 101220011107. The next prime is 101220011129. The reversal of 101220011123 is 321110022101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101220011123 - 2⁴ = 101220011107 is a prime.

It is a super-2 number, since 2×101220011123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101220011098 and 101220011107.

It is not an unprimeable number, because it can be changed into a prime (101220011129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657272723 + ... + 657272876.

It is an arithmetic number, because the mean of its divisors is an integer number (15774547200).

Almost surely, 2^101220011123 is an apocalyptic number.

101220011123 is a deficient number, since it is larger than the sum of its proper divisors (24976366477).

101220011123 is a wasteful number, since it uses less digits than its factorization.

101220011123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314545617.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 101220011123 its reverse (321110022101), we get a palindrome (422330033224).

The spelling of 101220011123 in words is "one hundred one billion, two hundred twenty million, eleven thousand, one hundred twenty-three".