140340023403 has 4 divisors (see below), whose sum is σ = 187120031208. Its totient is φ = 93560015600.

The previous prime is 140340023389. The next prime is 140340023419. The reversal of 140340023403 is 304320043041.

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 140340023403 - 2⁴ = 140340023387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140340023423) 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, 23390003898 + ... + 23390003903.

It is an arithmetic number, because the mean of its divisors is an integer number (46780007802).

Almost surely, 2^140340023403 is an apocalyptic number.

140340023403 is a deficient number, since it is larger than the sum of its proper divisors (46780007805).

140340023403 is an equidigital number, since it uses as much as digits as its factorization.

140340023403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46780007804.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 140340023403 its reverse (304320043041), we get a palindrome (444660066444).

The spelling of 140340023403 in words is "one hundred forty billion, three hundred forty million, twenty-three thousand, four hundred three".