10321200120 has 128 divisors (see below), whose sum is σ = 38604003840. Its totient is φ = 2144663040.

The previous prime is 10321200101. The next prime is 10321200139. The reversal of 10321200120 is 2100212301.

It is an interprime number because it is at equal distance from previous prime (10321200101) and next prime (10321200139).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10321200096 and 10321200105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549267 + ... + 567746.

It is an arithmetic number, because the mean of its divisors is an integer number (301593780).

Almost surely, 2^10321200120 is an apocalyptic number.

10321200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10321200120 is an abundant number, since it is smaller than the sum of its proper divisors (28282803720).

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

10321200120 is a wasteful number, since it uses less digits than its factorization.

10321200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117045 (or 1117041 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10321200120 its reverse (2100212301), we get a palindrome (12421412421).

The spelling of 10321200120 in words is "ten billion, three hundred twenty-one million, two hundred thousand, one hundred twenty".