389999013001231 has 4 divisors (see below), whose sum is σ = 390040444967832. Its totient is φ = 389957581034632.

The previous prime is 389999013001121. The next prime is 389999013001267. The reversal of 389999013001231 is 132100310999983.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389999013001231 is a prime.

It is a super-2 number, since 2×389999013001231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389999013001271) 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, 20715969181 + ... + 20715988006.

It is an arithmetic number, because the mean of its divisors is an integer number (97510111241958).

Almost surely, 2^{389999013001231} is an apocalyptic number.

389999013001231 is a deficient number, since it is larger than the sum of its proper divisors (41431966601).

389999013001231 is an equidigital number, since it uses as much as digits as its factorization.

389999013001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41431966600.

The product of its (nonzero) digits is 2834352, while the sum is 58.

The spelling of 389999013001231 in words is "three hundred eighty-nine trillion, nine hundred ninety-nine billion, thirteen million, one thousand, two hundred thirty-one".