11400238123 has 2 divisors, whose sum is σ = 11400238124. Its totient is φ = 11400238122.

The previous prime is 11400238049. The next prime is 11400238147. The reversal of 11400238123 is 32183200411.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (32183200411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11400238123 - 2¹³ = 11400229931 is a prime.

It is a super-2 number, since 2×11400238123² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11400238153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700119061 + 5700119062.

It is an arithmetic number, because the mean of its divisors is an integer number (5700119062).

Almost surely, 2^11400238123 is an apocalyptic number.

11400238123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11400238123 is an equidigital number, since it uses as much as digits as its factorization.

11400238123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 11400238123 its reverse (32183200411), we get a palindrome (43583438534).

The spelling of 11400238123 in words is "eleven billion, four hundred million, two hundred thirty-eight thousand, one hundred twenty-three".