42351023 has 16 divisors (see below), whose sum is σ = 50449056. Its totient is φ = 35043840.

The previous prime is 42351013. The next prime is 42351037. The reversal of 42351023 is 32015324.

It is a happy number.

It is not a de Polignac number, because 42351023 - 2⁴ = 42351007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42350986 and 42351004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42351013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8411 + ... + 12467.

It is an arithmetic number, because the mean of its divisors is an integer number (3153066).

Almost surely, 2^42351023 is an apocalyptic number.

42351023 is a deficient number, since it is larger than the sum of its proper divisors (8098033).

42351023 is a wasteful number, since it uses less digits than its factorization.

42351023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 42351023 is about 6507.7663602806. The cubic root of 42351023 is about 348.5683642841.

Adding to 42351023 its reverse (32015324), we get a palindrome (74366347).

The spelling of 42351023 in words is "forty-two million, three hundred fifty-one thousand, twenty-three".