2140320523 has 4 divisors (see below), whose sum is σ = 2334895128. Its totient is φ = 1945745920.

The previous prime is 2140320509. The next prime is 2140320529. The reversal of 2140320523 is 3250230412.

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 2140320523 - 2⁵ = 2140320491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2140320494 and 2140320503.

It is not an unprimeable number, because it can be changed into a prime (2140320529) 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, 97287286 + ... + 97287307.

It is an arithmetic number, because the mean of its divisors is an integer number (583723782).

Almost surely, 2^2140320523 is an apocalyptic number.

2140320523 is a deficient number, since it is larger than the sum of its proper divisors (194574605).

2140320523 is a wasteful number, since it uses less digits than its factorization.

2140320523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194574604.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2140320523 is about 46263.5982495958. The cubic root of 2140320523 is about 1288.7230765213.

Adding to 2140320523 its reverse (3250230412), we get a palindrome (5390550935).

The spelling of 2140320523 in words is "two billion, one hundred forty million, three hundred twenty thousand, five hundred twenty-three".