3890310021013 has 8 divisors (see below), whose sum is σ = 4211272229528. Its totient is φ = 3572448897024.

The previous prime is 3890310021001. The next prime is 3890310021023. The reversal of 3890310021013 is 3101200130983.

It can be written as a sum of positive squares in 4 ways, for example, as 281518319889 + 3608791701124 = 530583^2 + 1899682^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3890310021013 - 2³³ = 3881720086421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890310021023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775268520 + ... + 775273537.

It is an arithmetic number, because the mean of its divisors is an integer number (526409028691).

Almost surely, 2^{3890310021013} is an apocalyptic number.

It is an amenable number.

3890310021013 is a deficient number, since it is larger than the sum of its proper divisors (320962208515).

3890310021013 is a wasteful number, since it uses less digits than its factorization.

3890310021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550542263.

The product of its (nonzero) digits is 3888, while the sum is 31.

Adding to 3890310021013 its reverse (3101200130983), we get a palindrome (6991510151996).

The spelling of 3890310021013 in words is "three trillion, eight hundred ninety billion, three hundred ten million, twenty-one thousand, thirteen".