21110029153 has 2 divisors, whose sum is σ = 21110029154. Its totient is φ = 21110029152.

The previous prime is 21110029147. The next prime is 21110029159. The reversal of 21110029153 is 35192001112.

It is a balanced prime because it is at equal distance from previous prime (21110029147) and next prime (21110029159).

It can be written as a sum of positive squares in only one way, i.e., 12691599649 + 8418429504 = 112657^2 + 91752^2 .

It is a cyclic number.

It is not a de Polignac number, because 21110029153 - 2²⁵ = 21076474721 is a prime.

It is not a weakly prime, because it can be changed into another prime (21110029159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555014576 + 10555014577.

It is an arithmetic number, because the mean of its divisors is an integer number (10555014577).

Almost surely, 2^21110029153 is an apocalyptic number.

It is an amenable number.

21110029153 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110029153 is an equidigital number, since it uses as much as digits as its factorization.

21110029153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 25.

The spelling of 21110029153 in words is "twenty-one billion, one hundred ten million, twenty-nine thousand, one hundred fifty-three".