140187773123 has 4 divisors (see below), whose sum is σ = 141548819568. Its totient is φ = 138826726680.

The previous prime is 140187773107. The next prime is 140187773137. The reversal of 140187773123 is 321377781041.

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 140187773123 - 2⁴ = 140187773107 is a prime.

It is a super-2 number, since 2×140187773123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140187773423) 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, 680523068 + ... + 680523273.

It is an arithmetic number, because the mean of its divisors is an integer number (35387204892).

Almost surely, 2^140187773123 is an apocalyptic number.

140187773123 is a deficient number, since it is larger than the sum of its proper divisors (1361046445).

140187773123 is a wasteful number, since it uses less digits than its factorization.

140187773123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361046444.

The product of its (nonzero) digits is 197568, while the sum is 44.

The spelling of 140187773123 in words is "one hundred forty billion, one hundred eighty-seven million, seven hundred seventy-three thousand, one hundred twenty-three".