234423231511513 has 4 divisors (see below), whose sum is σ = 255734434376208. Its totient is φ = 213112028646820.

The previous prime is 234423231511373. The next prime is 234423231511537. The reversal of 234423231511513 is 315115132324432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234423231511513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234423231511813) 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, 10655601432331 + ... + 10655601432352.

It is an arithmetic number, because the mean of its divisors is an integer number (63933608594052).

Almost surely, 2^{234423231511513} is an apocalyptic number.

It is an amenable number.

234423231511513 is a deficient number, since it is larger than the sum of its proper divisors (21311202864695).

234423231511513 is a wasteful number, since it uses less digits than its factorization.

234423231511513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21311202864694.

The product of its digits is 259200, while the sum is 40.

Adding to 234423231511513 its reverse (315115132324432), we get a palindrome (549538363835945).

The spelling of 234423231511513 in words is "two hundred thirty-four trillion, four hundred twenty-three billion, two hundred thirty-one million, five hundred eleven thousand, five hundred thirteen".