20004311026151 has 4 divisors (see below), whose sum is σ = 20005949258904. Its totient is φ = 20002672793400.

The previous prime is 20004311026109. The next prime is 20004311026211. The reversal of 20004311026151 is 15162011340002.

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 20004311026151 - 2¹⁸ = 20004310764007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20004311026151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004311026351) 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, 819098060 + ... + 819122481.

It is an arithmetic number, because the mean of its divisors is an integer number (5001487314726).

Almost surely, 2^{20004311026151} is an apocalyptic number.

20004311026151 is a deficient number, since it is larger than the sum of its proper divisors (1638232753).

20004311026151 is a wasteful number, since it uses less digits than its factorization.

20004311026151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638232752.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 20004311026151 its reverse (15162011340002), we get a palindrome (35166322366153).

The spelling of 20004311026151 in words is "twenty trillion, four billion, three hundred eleven million, twenty-six thousand, one hundred fifty-one".