211233002131 has 4 divisors (see below), whose sum is σ = 211237805200. Its totient is φ = 211228199064.

The previous prime is 211233002117. The next prime is 211233002143. The reversal of 211233002131 is 131200332112.

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 211233002131 - 2²⁵ = 211199447699 is a prime.

It is a super-2 number, since 2×211233002131² (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 = 211233002099 and 211233002108.

It is not an unprimeable number, because it can be changed into a prime (211233102131) 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, 2334951 + ... + 2423728.

It is an arithmetic number, because the mean of its divisors is an integer number (52809451300).

Almost surely, 2^211233002131 is an apocalyptic number.

211233002131 is a deficient number, since it is larger than the sum of its proper divisors (4803069).

211233002131 is an equidigital number, since it uses as much as digits as its factorization.

211233002131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4803068.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 211233002131 its reverse (131200332112), we get a palindrome (342433334243).

The spelling of 211233002131 in words is "two hundred eleven billion, two hundred thirty-three million, two thousand, one hundred thirty-one".