230143437011 has 4 divisors (see below), whose sum is σ = 232254844800. Its totient is φ = 228032029224.

The previous prime is 230143436959. The next prime is 230143437037. The reversal of 230143437011 is 110734341032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230143437011 is a prime.

It is a super-2 number, since 2×230143437011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230143437311) 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, 1055703731 + ... + 1055703948.

It is an arithmetic number, because the mean of its divisors is an integer number (58063711200).

Almost surely, 2^230143437011 is an apocalyptic number.

230143437011 is a deficient number, since it is larger than the sum of its proper divisors (2111407789).

230143437011 is a wasteful number, since it uses less digits than its factorization.

230143437011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111407788.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 230143437011 its reverse (110734341032), we get a palindrome (340877778043).

The spelling of 230143437011 in words is "two hundred thirty billion, one hundred forty-three million, four hundred thirty-seven thousand, eleven".