213322313131 has 8 divisors (see below), whose sum is σ = 215308813824. Its totient is φ = 211340606400.

The previous prime is 213322313119. The next prime is 213322313143. The reversal of 213322313131 is 131313223312.

It is an interprime number because it is at equal distance from previous prime (213322313119) and next prime (213322313143).

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 213322313131 - 2¹⁹ = 213321788843 is a prime.

It is a super-2 number, since 2×213322313131² (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 = 213322313096 and 213322313105.

It is not an unprimeable number, because it can be changed into a prime (213322313111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109050 + ... + 1287103.

It is an arithmetic number, because the mean of its divisors is an integer number (26913601728).

Almost surely, 2^213322313131 is an apocalyptic number.

213322313131 is a deficient number, since it is larger than the sum of its proper divisors (1986500693).

213322313131 is a wasteful number, since it uses less digits than its factorization.

213322313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396981.

The product of its digits is 1944, while the sum is 25.

Adding to 213322313131 its reverse (131313223312), we get a palindrome (344635536443).

The spelling of 213322313131 in words is "two hundred thirteen billion, three hundred twenty-two million, three hundred thirteen thousand, one hundred thirty-one".