101421123 has 8 divisors (see below), whose sum is σ = 135819600. Its totient is φ = 67318368.

The previous prime is 101421097. The next prime is 101421179. The reversal of 101421123 is 321124101.

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

It is not a de Polignac number, because 101421123 - 2⁹ = 101420611 is a prime.

It is a super-2 number, since 2×101421123² = 20572488381162258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101421623) 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, 73128 + ... + 74501.

It is an arithmetic number, because the mean of its divisors is an integer number (16977450).

Almost surely, 2^101421123 is an apocalyptic number.

101421123 is a deficient number, since it is larger than the sum of its proper divisors (34398477).

101421123 is a wasteful number, since it uses less digits than its factorization.

101421123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147861.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 101421123 is about 10070.8054792057. The cubic root of 101421123 is about 466.3473053625.

Adding to 101421123 its reverse (321124101), we get a palindrome (422545224).

The spelling of 101421123 in words is "one hundred one million, four hundred twenty-one thousand, one hundred twenty-three".