1203122113220 has 48 divisors (see below), whose sum is σ = 2532977008128. Its totient is φ = 480026378880.

The previous prime is 1203122113189. The next prime is 1203122113229. The reversal of 1203122113220 is 223112213021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1203122113192 and 1203122113201.

It is not an unprimeable number, because it can be changed into a prime (1203122113229) 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, 47630114 + ... + 47655366.

It is an arithmetic number, because the mean of its divisors is an integer number (52770354336).

Almost surely, 2^{1203122113220} is an apocalyptic number.

1203122113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203122113220 is an abundant number, since it is smaller than the sum of its proper divisors (1329854894908).

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

1203122113220 is a wasteful number, since it uses less digits than its factorization.

1203122113220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31220 (or 31218 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1203122113220 its reverse (223112213021), we get a palindrome (1426234326241).

The spelling of 1203122113220 in words is "one trillion, two hundred three billion, one hundred twenty-two million, one hundred thirteen thousand, two hundred twenty".