131203004220 has 36 divisors (see below), whose sum is σ = 397982446680. Its totient is φ = 34987467744.

The previous prime is 131203004201. The next prime is 131203004237. The reversal of 131203004220 is 22400302131.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 131203004193 and 131203004202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364452610 + ... + 364452969.

Almost surely, 2^131203004220 is an apocalyptic number.

131203004220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131203004220 is an abundant number, since it is smaller than the sum of its proper divisors (266779442460).

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

131203004220 is a wasteful number, since it uses less digits than its factorization.

131203004220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728905594 (or 728905589 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 131203004220 its reverse (22400302131), we get a palindrome (153603306351).

The spelling of 131203004220 in words is "one hundred thirty-one billion, two hundred three million, four thousand, two hundred twenty".