213022011031 has 8 divisors (see below), whose sum is σ = 217135416960. Its totient is φ = 208912091232.

The previous prime is 213022011019. The next prime is 213022011071. The reversal of 213022011031 is 130110220312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213022011031 - 2²¹ = 213019913879 is a prime.

It is a super-2 number, since 2×213022011031² (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 = 213022010996 and 213022011014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213022011001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747975 + ... + 992728.

It is an arithmetic number, because the mean of its divisors is an integer number (27141927120).

Almost surely, 2^213022011031 is an apocalyptic number.

213022011031 is a deficient number, since it is larger than the sum of its proper divisors (4113405929).

213022011031 is a wasteful number, since it uses less digits than its factorization.

213022011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743065.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 213022011031 its reverse (130110220312), we get a palindrome (343132231343).

The spelling of 213022011031 in words is "two hundred thirteen billion, twenty-two million, eleven thousand, thirty-one".