245310421021320 has 512 divisors, whose sum is σ = 802941520550400. Its totient is φ = 59712169574400.

The previous prime is 245310421021319. The next prime is 245310421021339. The reversal of 245310421021320 is 23120124013542.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 22425300411 + ... + 22425311349.

It is an arithmetic number, because the mean of its divisors is an integer number (1568245157325).

Almost surely, 2^{245310421021320} is an apocalyptic number.

245310421021320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245310421021320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401470760275200).

245310421021320 is an abundant number, since it is smaller than the sum of its proper divisors (557631099529080).

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

245310421021320 is a wasteful number, since it uses less digits than its factorization.

245310421021320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12569 (or 12565 counting only the distinct ones).

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

Adding to 245310421021320 its reverse (23120124013542), we get a palindrome (268430545034862).

The spelling of 245310421021320 in words is "two hundred forty-five trillion, three hundred ten billion, four hundred twenty-one million, twenty-one thousand, three hundred twenty".