203012232001220 has 96 divisors (see below), whose sum is σ = 432294594708480. Its totient is φ = 80074505871360.

The previous prime is 203012232001153. The next prime is 203012232001231. The reversal of 203012232001220 is 22100232210302.

It is a happy number.

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 = 203012232001192 and 203012232001201.

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, 728503352 + ... + 728781968.

It is an arithmetic number, because the mean of its divisors is an integer number (4503068694880).

Almost surely, 2^{203012232001220} is an apocalyptic number.

203012232001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203012232001220 is an abundant number, since it is smaller than the sum of its proper divisors (229282362707260).

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

203012232001220 is a wasteful number, since it uses less digits than its factorization.

203012232001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280093 (or 280091 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 203012232001220 its reverse (22100232210302), we get a palindrome (225112464211522).

The spelling of 203012232001220 in words is "two hundred three trillion, twelve billion, two hundred thirty-two million, one thousand, two hundred twenty".