11534402123 has 2 divisors, whose sum is σ = 11534402124. Its totient is φ = 11534402122.

The previous prime is 11534402093. The next prime is 11534402129. The reversal of 11534402123 is 32120443511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11534402123 - 2¹⁸ = 11534139979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11534402092 and 11534402101.

It is not a weakly prime, because it can be changed into another prime (11534402129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5767201061 + 5767201062.

It is an arithmetic number, because the mean of its divisors is an integer number (5767201062).

Almost surely, 2^11534402123 is an apocalyptic number.

11534402123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11534402123 is an equidigital number, since it uses as much as digits as its factorization.

11534402123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 11534402123 its reverse (32120443511), we get a palindrome (43654845634).

The spelling of 11534402123 in words is "eleven billion, five hundred thirty-four million, four hundred two thousand, one hundred twenty-three".