21112120101203 has 2 divisors, whose sum is σ = 21112120101204. Its totient is φ = 21112120101202.

The previous prime is 21112120101179. The next prime is 21112120101227. The reversal of 21112120101203 is 30210102121112.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (21112120101179) and next prime (21112120101227).

It is a cyclic number.

It is not a de Polignac number, because 21112120101203 - 2³² = 21107825133907 is a prime.

It is not a weakly prime, because it can be changed into another prime (21112120101103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556060050601 + 10556060050602.

It is an arithmetic number, because the mean of its divisors is an integer number (10556060050602).

Almost surely, 2^{21112120101203} is an apocalyptic number.

21112120101203 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112120101203 is an equidigital number, since it uses as much as digits as its factorization.

21112120101203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 21112120101203 its reverse (30210102121112), we get a palindrome (51322222222315).

The spelling of 21112120101203 in words is "twenty-one trillion, one hundred twelve billion, one hundred twenty million, one hundred one thousand, two hundred three".