140012323123 has 4 divisors (see below), whose sum is σ = 140013164880. Its totient is φ = 140011481368.

The previous prime is 140012323111. The next prime is 140012323183. The reversal of 140012323123 is 321323210041.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 321323210041 = 67579 ⋅4754779.

It is a cyclic number.

It is not a de Polignac number, because 140012323123 - 2¹³ = 140012314931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140012323094 and 140012323103.

It is not an unprimeable number, because it can be changed into a prime (140012323183) 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, 78583 + ... + 534976.

It is an arithmetic number, because the mean of its divisors is an integer number (35003291220).

Almost surely, 2^140012323123 is an apocalyptic number.

140012323123 is a deficient number, since it is larger than the sum of its proper divisors (841757).

140012323123 is an equidigital number, since it uses as much as digits as its factorization.

140012323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841756.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 140012323123 its reverse (321323210041), we get a palindrome (461335533164).

The spelling of 140012323123 in words is "one hundred forty billion, twelve million, three hundred twenty-three thousand, one hundred twenty-three".