20112101029 has 2 divisors, whose sum is σ = 20112101030. Its totient is φ = 20112101028.

The previous prime is 20112100999. The next prime is 20112101057. The reversal of 20112101029 is 92010121102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20110076100 + 2024929 = 141810^2 + 1423^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112101029 - 2⁷ = 20112100901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20112100997 and 20112101015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112101069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056050514 + 10056050515.

It is an arithmetic number, because the mean of its divisors is an integer number (10056050515).

Almost surely, 2^20112101029 is an apocalyptic number.

It is an amenable number.

20112101029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112101029 is an equidigital number, since it uses as much as digits as its factorization.

20112101029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 20112101029 in words is "twenty billion, one hundred twelve million, one hundred one thousand, twenty-nine".