20011112119951 has 2 divisors, whose sum is σ = 20011112119952. Its totient is φ = 20011112119950.

The previous prime is 20011112119913. The next prime is 20011112119963. The reversal of 20011112119951 is 15991121111002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20011112119951 - 2³¹ = 20008964636303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011112119991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005556059975 + 10005556059976.

It is an arithmetic number, because the mean of its divisors is an integer number (10005556059976).

Almost surely, 2^{20011112119951} is an apocalyptic number.

20011112119951 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011112119951 is an equidigital number, since it uses as much as digits as its factorization.

20011112119951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 34.

The spelling of 20011112119951 in words is "twenty trillion, eleven billion, one hundred twelve million, one hundred nineteen thousand, nine hundred fifty-one".