213112131203000 has 128 divisors (see below), whose sum is σ = 504571541760000. Its totient is φ = 84242243635200.

The previous prime is 213112131202987. The next prime is 213112131203017. The reversal of 213112131203000 is 302131211312.

It is a happy number.

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

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, 39194576 + ... + 44299424.

It is an arithmetic number, because the mean of its divisors is an integer number (3941965170000).

Almost surely, 2^{213112131203000} is an apocalyptic number.

213112131203000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213112131203000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252285770880000).

213112131203000 is an abundant number, since it is smaller than the sum of its proper divisors (291459410557000).

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

213112131203000 is a wasteful number, since it uses less digits than its factorization.

213112131203000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105362 (or 5105348 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213112131203000 its reverse (302131211312), we get a palindrome (213414262414312).

The spelling of 213112131203000 in words is "two hundred thirteen trillion, one hundred twelve billion, one hundred thirty-one million, two hundred three thousand".