30251142312 has 64 divisors (see below), whose sum is σ = 76473936000. Its totient is φ = 9971318784.

The previous prime is 30251142301. The next prime is 30251142343. The reversal of 30251142312 is 21324115203.

It is a super-2 number, since 2×30251142312² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1177864 + ... + 1203272.

It is an arithmetic number, because the mean of its divisors is an integer number (1194905250).

Almost surely, 2^30251142312 is an apocalyptic number.

It is an amenable number.

30251142312 is an abundant number, since it is smaller than the sum of its proper divisors (46222793688).

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

30251142312 is a wasteful number, since it uses less digits than its factorization.

30251142312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25970 (or 25966 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 30251142312 its reverse (21324115203), we get a palindrome (51575257515).

The spelling of 30251142312 in words is "thirty billion, two hundred fifty-one million, one hundred forty-two thousand, three hundred twelve".