30100021242 has 32 divisors (see below), whose sum is σ = 61912838592. Its totient is φ = 9750244224.

The previous prime is 30100021223. The next prime is 30100021247. The reversal of 30100021242 is 24212000103.

It is a super-2 number, since 2×30100021242² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30100021247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245283 + ... + 346934.

It is an arithmetic number, because the mean of its divisors is an integer number (1934776206).

Almost surely, 2^30100021242 is an apocalyptic number.

30100021242 is an abundant number, since it is smaller than the sum of its proper divisors (31812817350).

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

30100021242 is a wasteful number, since it uses less digits than its factorization.

30100021242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592462.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 30100021242 its reverse (24212000103), we get a palindrome (54312021345).

The spelling of 30100021242 in words is "thirty billion, one hundred million, twenty-one thousand, two hundred forty-two".