30142321132 has 96 divisors (see below), whose sum is σ = 67400686080. Its totient is φ = 11550369600.

The previous prime is 30142321129. The next prime is 30142321133. The reversal of 30142321132 is 23112324103.

It is a super-2 number, since 2×30142321132² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (30142321133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2266719 + ... + 2279977.

It is an arithmetic number, because the mean of its divisors is an integer number (702090480).

Almost surely, 2^30142321132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30142321132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33700343040).

30142321132 is an abundant number, since it is smaller than the sum of its proper divisors (37258364948).

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

30142321132 is a wasteful number, since it uses less digits than its factorization.

30142321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13364 (or 13340 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 30142321132 its reverse (23112324103), we get a palindrome (53254645235).

The spelling of 30142321132 in words is "thirty billion, one hundred forty-two million, three hundred twenty-one thousand, one hundred thirty-two".