213233012031 has 24 divisors (see below), whose sum is σ = 307894211856. Its totient is φ = 131207032320.

The previous prime is 213233011997. The next prime is 213233012053. The reversal of 213233012031 is 130210332312.

It is not a de Polignac number, because 213233012031 - 2⁷ = 213233011903 is a prime.

It is a super-2 number, since 2×213233012031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213233011989 and 213233012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213233012431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7886071 + ... + 7913063.

It is an arithmetic number, because the mean of its divisors is an integer number (12828925494).

Almost surely, 2^213233012031 is an apocalyptic number.

213233012031 is a deficient number, since it is larger than the sum of its proper divisors (94661199825).

213233012031 is a wasteful number, since it uses less digits than its factorization.

213233012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42603 (or 42590 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 213233012031 its reverse (130210332312), we get a palindrome (343443344343).

The spelling of 213233012031 in words is "two hundred thirteen billion, two hundred thirty-three million, twelve thousand, thirty-one".