145203200120 has 32 divisors (see below), whose sum is σ = 356407855920. Its totient is φ = 52801163520.

The previous prime is 145203200057. The next prime is 145203200171. The reversal of 145203200120 is 21002302541.

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 = 145203200092 and 145203200101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165003197 + ... + 165004076.

Almost surely, 2^145203200120 is an apocalyptic number.

145203200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145203200120 is an abundant number, since it is smaller than the sum of its proper divisors (211204655800).

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

145203200120 is a wasteful number, since it uses less digits than its factorization.

145203200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330007295 (or 330007291 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 145203200120 its reverse (21002302541), we get a palindrome (166205502661).

The spelling of 145203200120 in words is "one hundred forty-five billion, two hundred three million, two hundred thousand, one hundred twenty".