213203032031 has 16 divisors (see below), whose sum is σ = 233849548800. Its totient is φ = 192767661600.

The previous prime is 213203032027. The next prime is 213203032043. The reversal of 213203032031 is 130230302312.

It is a cyclic number.

It is not a de Polignac number, because 213203032031 - 2² = 213203032027 is a prime.

It is a super-2 number, since 2×213203032031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213203031994 and 213203032012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213203037031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18964310 + ... + 18975548.

It is an arithmetic number, because the mean of its divisors is an integer number (14615596800).

Almost surely, 2^213203032031 is an apocalyptic number.

213203032031 is a deficient number, since it is larger than the sum of its proper divisors (20646516769).

213203032031 is a wasteful number, since it uses less digits than its factorization.

213203032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20470.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 213203032031 its reverse (130230302312), we get a palindrome (343433334343).

The spelling of 213203032031 in words is "two hundred thirteen billion, two hundred three million, thirty-two thousand, thirty-one".