11121011871029 has 2 divisors, whose sum is σ = 11121011871030. Its totient is φ = 11121011871028.

The previous prime is 11121011871023. The next prime is 11121011871061. The reversal of 11121011871029 is 92017811012111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11058963552004 + 62048319025 = 3325502^2 + 249095^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121011871029 - 2¹² = 11121011866933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11121011871029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121011871023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560505935514 + 5560505935515.

It is an arithmetic number, because the mean of its divisors is an integer number (5560505935515).

Almost surely, 2^{11121011871029} is an apocalyptic number.

It is an amenable number.

11121011871029 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121011871029 is an equidigital number, since it uses as much as digits as its factorization.

11121011871029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 35.

The spelling of 11121011871029 in words is "eleven trillion, one hundred twenty-one billion, eleven million, eight hundred seventy-one thousand, twenty-nine".