213032221321031 has 32 divisors (see below), whose sum is σ = 245329664371200. Its totient is φ = 181203195643776.

The previous prime is 213032221321021. The next prime is 213032221321091. The reversal of 213032221321031 is 130123122230312.

It is a de Polignac number, because none of the positive numbers 2^k-213032221321031 is a prime.

It is a super-2 number, since 2×213032221321031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213032221321021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14755982345 + ... + 14755996781.

It is an arithmetic number, because the mean of its divisors is an integer number (7666552011600).

Almost surely, 2^{213032221321031} is an apocalyptic number.

213032221321031 is a deficient number, since it is larger than the sum of its proper divisors (32297443050169).

213032221321031 is a wasteful number, since it uses less digits than its factorization.

213032221321031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26903.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 213032221321031 its reverse (130123122230312), we get a palindrome (343155343551343).

The spelling of 213032221321031 in words is "two hundred thirteen trillion, thirty-two billion, two hundred twenty-one million, three hundred twenty-one thousand, thirty-one".