20111230023029 has 2 divisors, whose sum is σ = 20111230023030. Its totient is φ = 20111230023028.

The previous prime is 20111230022957. The next prime is 20111230023043. The reversal of 20111230023029 is 92032003211102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19743536956900 + 367693066129 = 4443370^2 + 606377^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111230023029 - 2¹⁶ = 20111229957493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20111230022989 and 20111230023007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20111230023089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055615011514 + 10055615011515.

It is an arithmetic number, because the mean of its divisors is an integer number (10055615011515).

Almost surely, 2^{20111230023029} is an apocalyptic number.

It is an amenable number.

20111230023029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111230023029 is an equidigital number, since it uses as much as digits as its factorization.

20111230023029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 20111230023029 in words is "twenty trillion, one hundred eleven billion, two hundred thirty million, twenty-three thousand, twenty-nine".