30142113140 has 24 divisors (see below), whose sum is σ = 63305385192. Its totient is φ = 12055521920.

The previous prime is 30142113137. The next prime is 30142113149. The reversal of 30142113140 is 4131124103.

It can be written as a sum of positive squares in 4 ways, for example, as 7583274724 + 22558838416 = 87082^2 + 150196^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142113149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115670 + ... + 271410.

It is an arithmetic number, because the mean of its divisors is an integer number (2637724383).

Almost surely, 2^30142113140 is an apocalyptic number.

It is an amenable number.

30142113140 is an abundant number, since it is smaller than the sum of its proper divisors (33163272052).

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

30142113140 is a wasteful number, since it uses less digits than its factorization.

30142113140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165427 (or 165425 counting only the distinct ones).

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

Adding to 30142113140 its reverse (4131124103), we get a palindrome (34273237243).

The spelling of 30142113140 in words is "thirty billion, one hundred forty-two million, one hundred thirteen thousand, one hundred forty".