30213442121250 has 160 divisors (see below), whose sum is σ = 80142051084480. Its totient is φ = 7564877056000.

The previous prime is 30213442121221. The next prime is 30213442121251. The reversal of 30213442121250 is 5212124431203.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (30213442121251) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 26145694 + ... + 27276806.

It is an arithmetic number, because the mean of its divisors is an integer number (500887819278).

Almost surely, 2^{30213442121250} is an apocalyptic number.

30213442121250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30213442121250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40071025542240).

30213442121250 is an abundant number, since it is smaller than the sum of its proper divisors (49928608963230).

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

30213442121250 is a wasteful number, since it uses less digits than its factorization.

30213442121250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131574 (or 1131559 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 30213442121250 its reverse (5212124431203), we get a palindrome (35425566552453).

The spelling of 30213442121250 in words is "thirty trillion, two hundred thirteen billion, four hundred forty-two million, one hundred twenty-one thousand, two hundred fifty".