213230003131 has 4 divisors (see below), whose sum is σ = 216150962152. Its totient is φ = 210309044112.

The previous prime is 213230003113. The next prime is 213230003201. The reversal of 213230003131 is 131300032312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213230003131 - 2¹⁷ = 213229872059 is a prime.

It is a super-2 number, since 2×213230003131² (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 = 213230003099 and 213230003108.

It is not an unprimeable number, because it can be changed into a prime (213230003101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460479401 + ... + 1460479546.

It is an arithmetic number, because the mean of its divisors is an integer number (54037740538).

Almost surely, 2^213230003131 is an apocalyptic number.

213230003131 is a deficient number, since it is larger than the sum of its proper divisors (2920959021).

213230003131 is an equidigital number, since it uses as much as digits as its factorization.

213230003131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920959020.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 213230003131 its reverse (131300032312), we get a palindrome (344530035443).

The spelling of 213230003131 in words is "two hundred thirteen billion, two hundred thirty million, three thousand, one hundred thirty-one".