42145120032330 has 128 divisors (see below), whose sum is σ = 117064772149248. Its totient is φ = 9511089702912.

The previous prime is 42145120032329. The next prime is 42145120032341. The reversal of 42145120032330 is 3323002154124.

It is a super-2 number, since 2×42145120032330² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26827962 + ... + 28355418.

It is an arithmetic number, because the mean of its divisors is an integer number (914568532416).

Almost surely, 2^{42145120032330} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42145120032330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58532386074624).

42145120032330 is an abundant number, since it is smaller than the sum of its proper divisors (74919652116918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42145120032330 is a wasteful number, since it uses less digits than its factorization.

42145120032330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529140.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 42145120032330 its reverse (3323002154124), we get a palindrome (45468122186454).

The spelling of 42145120032330 in words is "forty-two trillion, one hundred forty-five billion, one hundred twenty million, thirty-two thousand, three hundred thirty".