42000120121223 has 8 divisors (see below), whose sum is σ = 46238664354960. Its totient is φ = 37831634470080.

The previous prime is 42000120121217. The next prime is 42000120121241. The reversal of 42000120121223 is 32212102100024.

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

It is not a de Polignac number, because 42000120121223 - 2²² = 42000115926919 is a prime.

It is a super-2 number, since 2×42000120121223² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42000120121195 and 42000120121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42000120121213) 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, 17514644390 + ... + 17514646787.

It is an arithmetic number, because the mean of its divisors is an integer number (5779833044370).

Almost surely, 2^{42000120121223} is an apocalyptic number.

42000120121223 is a deficient number, since it is larger than the sum of its proper divisors (4238544233737).

42000120121223 is a wasteful number, since it uses less digits than its factorization.

42000120121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35029291297.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 42000120121223 its reverse (32212102100024), we get a palindrome (74212222221247).

The spelling of 42000120121223 in words is "forty-two trillion, one hundred twenty million, one hundred twenty-one thousand, two hundred twenty-three".