213203233125 has 120 divisors (see below), whose sum is σ = 398970257400. Its totient is φ = 109546752000.

The previous prime is 213203233121. The next prime is 213203233129. The reversal of 213203233125 is 521332302312.

It is a happy number.

213203233125 is a `hidden beast` number, since 2 + 1 + 3 + 20 + 323 + 312 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (213203233121) and next prime (213203233129).

It can be written as a sum of positive squares in 20 ways, for example, as 211924884609 + 1278348516 = 460353^2 + 35754^2 .

It is not a de Polignac number, because 213203233125 - 2² = 213203233121 is a prime.

It is a super-2 number, since 2×213203233125² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213203233121) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 92816977 + ... + 92819273.

It is an arithmetic number, because the mean of its divisors is an integer number (3324752145).

Almost surely, 2^213203233125 is an apocalyptic number.

213203233125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213203233125 is a deficient number, since it is larger than the sum of its proper divisors (185767024275).

213203233125 is a wasteful number, since it uses less digits than its factorization.

213203233125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921 (or 2903 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 213203233125 its reverse (521332302312), we get a palindrome (734535535437).

The spelling of 213203233125 in words is "two hundred thirteen billion, two hundred three million, two hundred thirty-three thousand, one hundred twenty-five".