231640246053001 has 4 divisors (see below), whose sum is σ = 231650851827604. Its totient is φ = 231629640278400.

The previous prime is 231640246052989. The next prime is 231640246053019. The reversal of 231640246053001 is 100350642046132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19890485015625 + 211749761037376 = 4459875^2 + 14551624^2 .

It is a cyclic number.

It is not a de Polignac number, because 231640246053001 - 2⁴⁷ = 90902757697673 is a prime.

It is a super-2 number, since 2×231640246053001² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231640246051001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5302854540 + ... + 5302898221.

It is an arithmetic number, because the mean of its divisors is an integer number (57912712956901).

Almost surely, 2^{231640246053001} is an apocalyptic number.

It is an amenable number.

231640246053001 is a deficient number, since it is larger than the sum of its proper divisors (10605774603).

231640246053001 is a wasteful number, since it uses less digits than its factorization.

231640246053001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10605774602.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 231640246053001 its reverse (100350642046132), we get a palindrome (331990888099133).

The spelling of 231640246053001 in words is "two hundred thirty-one trillion, six hundred forty billion, two hundred forty-six million, fifty-three thousand, one".