234210521131 has 4 divisors (see below), whose sum is σ = 241765699264. Its totient is φ = 226655343000.

The previous prime is 234210521117. The next prime is 234210521137. The reversal of 234210521131 is 131125012432.

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 234210521131 - 2¹¹ = 234210519083 is a prime.

It is a super-2 number, since 2×234210521131² (a number of 24 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 = 234210521096 and 234210521105.

It is not an unprimeable number, because it can be changed into a prime (234210521137) 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, 3777589020 + ... + 3777589081.

It is an arithmetic number, because the mean of its divisors is an integer number (60441424816).

Almost surely, 2^234210521131 is an apocalyptic number.

234210521131 is a deficient number, since it is larger than the sum of its proper divisors (7555178133).

234210521131 is an equidigital number, since it uses as much as digits as its factorization.

234210521131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7555178132.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 234210521131 its reverse (131125012432), we get a palindrome (365335533563).

The spelling of 234210521131 in words is "two hundred thirty-four billion, two hundred ten million, five hundred twenty-one thousand, one hundred thirty-one".