12140433623 has 4 divisors (see below), whose sum is σ = 12141397608. Its totient is φ = 12139469640.

The previous prime is 12140433607. The next prime is 12140433637. The reversal of 12140433623 is 32633404121.

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

It is a cyclic number.

It is not a de Polignac number, because 12140433623 - 2⁴ = 12140433607 is a prime.

It is a super-2 number, since 2×12140433623² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140435623) 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, 462848 + ... + 488373.

It is an arithmetic number, because the mean of its divisors is an integer number (3035349402).

Almost surely, 2^12140433623 is an apocalyptic number.

12140433623 is a deficient number, since it is larger than the sum of its proper divisors (963985).

12140433623 is an equidigital number, since it uses as much as digits as its factorization.

12140433623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963984.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 12140433623 its reverse (32633404121), we get a palindrome (44773837744).

The spelling of 12140433623 in words is "twelve billion, one hundred forty million, four hundred thirty-three thousand, six hundred twenty-three".