20002101232951 has 2 divisors, whose sum is σ = 20002101232952. Its totient is φ = 20002101232950.

The previous prime is 20002101232943. The next prime is 20002101233033. The reversal of 20002101232951 is 15923210120002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20002101232951 - 2³ = 20002101232943 is a prime.

It is a super-3 number, since 3×20002101232951³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20002101232151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001050616475 + 10001050616476.

It is an arithmetic number, because the mean of its divisors is an integer number (10001050616476).

Almost surely, 2^{20002101232951} is an apocalyptic number.

20002101232951 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002101232951 is an equidigital number, since it uses as much as digits as its factorization.

20002101232951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 20002101232951 its reverse (15923210120002), we get a palindrome (35925311352953).

The spelling of 20002101232951 in words is "twenty trillion, two billion, one hundred one million, two hundred thirty-two thousand, nine hundred fifty-one".