42132123101 has 4 divisors (see below), whose sum is σ = 42139046304. Its totient is φ = 42125199900.

The previous prime is 42132123017. The next prime is 42132123139. The reversal of 42132123101 is 10132123124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42132123101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42132123151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3452465 + ... + 3464646.

It is an arithmetic number, because the mean of its divisors is an integer number (10534761576).

Almost surely, 2^42132123101 is an apocalyptic number.

It is an amenable number.

42132123101 is a deficient number, since it is larger than the sum of its proper divisors (6923203).

42132123101 is an equidigital number, since it uses as much as digits as its factorization.

42132123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923202.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 42132123101 its reverse (10132123124), we get a palindrome (52264246225).

The spelling of 42132123101 in words is "forty-two billion, one hundred thirty-two million, one hundred twenty-three thousand, one hundred one".