213122132031 has 8 divisors (see below), whose sum is σ = 285174099504. Its totient is φ = 141575792960.

The previous prime is 213122132011. The next prime is 213122132063. The reversal of 213122132031 is 130231221312.

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 213122132031 - 2¹³ = 213122123839 is a prime.

It is a super-2 number, since 2×213122132031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213122131989 and 213122132007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213122132011) 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, 126406116 + ... + 126407801.

It is an arithmetic number, because the mean of its divisors is an integer number (35646762438).

Almost surely, 2^213122132031 is an apocalyptic number.

213122132031 is a deficient number, since it is larger than the sum of its proper divisors (72051967473).

213122132031 is a wasteful number, since it uses less digits than its factorization.

213122132031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252814201.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213122132031 its reverse (130231221312), we get a palindrome (343353353343).

The spelling of 213122132031 in words is "two hundred thirteen billion, one hundred twenty-two million, one hundred thirty-two thousand, thirty-one".