20240175381 has 4 divisors (see below), whose sum is σ = 26986900512. Its totient is φ = 13493450252.

The previous prime is 20240175359. The next prime is 20240175443. The reversal of 20240175381 is 18357104202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20240175381 - 2⁷ = 20240175253 is a prime.

It is a super-2 number, since 2×20240175381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240175341) 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, 3373362561 + ... + 3373362566.

It is an arithmetic number, because the mean of its divisors is an integer number (6746725128).

Almost surely, 2^20240175381 is an apocalyptic number.

It is an amenable number.

20240175381 is a deficient number, since it is larger than the sum of its proper divisors (6746725131).

20240175381 is an equidigital number, since it uses as much as digits as its factorization.

20240175381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6746725130.

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 20240175381 its reverse (18357104202), we get a palindrome (38597279583).

The spelling of 20240175381 in words is "twenty billion, two hundred forty million, one hundred seventy-five thousand, three hundred eighty-one".