123440231411 has 32 divisors (see below), whose sum is σ = 152033840640. Its totient is φ = 97812748800.

The previous prime is 123440231399. The next prime is 123440231417. The reversal of 123440231411 is 114132044321.

It is a cyclic number.

It is not a de Polignac number, because 123440231411 - 2²⁶ = 123373122547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123440231417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5352896 + ... + 5375906.

It is an arithmetic number, because the mean of its divisors is an integer number (4751057520).

Almost surely, 2^123440231411 is an apocalyptic number.

123440231411 is a deficient number, since it is larger than the sum of its proper divisors (28593609229).

123440231411 is a wasteful number, since it uses less digits than its factorization.

123440231411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23835.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 123440231411 its reverse (114132044321), we get a palindrome (237572275732).

The spelling of 123440231411 in words is "one hundred twenty-three billion, four hundred forty million, two hundred thirty-one thousand, four hundred eleven".