140402212423 has 24 divisors (see below), whose sum is σ = 155164754304. Its totient is φ = 126946197840.

The previous prime is 140402212409. The next prime is 140402212439. The reversal of 140402212423 is 324212204041.

It is a de Polignac number, because none of the positive numbers 2^k-140402212423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140402212453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35787540 + ... + 35791462.

It is an arithmetic number, because the mean of its divisors is an integer number (6465198096).

Almost surely, 2^140402212423 is an apocalyptic number.

140402212423 is a deficient number, since it is larger than the sum of its proper divisors (14762541881).

140402212423 is a wasteful number, since it uses less digits than its factorization.

140402212423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475 (or 5464 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 140402212423 its reverse (324212204041), we get a palindrome (464614416464).

The spelling of 140402212423 in words is "one hundred forty billion, four hundred two million, two hundred twelve thousand, four hundred twenty-three".