142100023 has 16 divisors (see below), whose sum is σ = 155387232. Its totient is φ = 129168000.

The previous prime is 142100011. The next prime is 142100051. The reversal of 142100023 is 320001241.

It is not a de Polignac number, because 142100023 - 2¹⁷ = 141968951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 142099976 and 142100012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142104023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308013 + ... + 308473.

It is an arithmetic number, because the mean of its divisors is an integer number (9711702).

Almost surely, 2^142100023 is an apocalyptic number.

142100023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

142100023 is a deficient number, since it is larger than the sum of its proper divisors (13287209).

142100023 is a wasteful number, since it uses less digits than its factorization.

142100023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 142100023 is about 11920.5714208674. The cubic root of 142100023 is about 521.8328112620.

Adding to 142100023 its reverse (320001241), we get a palindrome (462101264).

The spelling of 142100023 in words is "one hundred forty-two million, one hundred thousand, twenty-three".