1011023321129 has 2 divisors, whose sum is σ = 1011023321130. Its totient is φ = 1011023321128.

The previous prime is 1011023321101. The next prime is 1011023321149. The reversal of 1011023321129 is 9211233201101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 951317376025 + 59705945104 = 975355^2 + 244348^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011023321129 - 2⁸ = 1011023320873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011023321098 and 1011023321107.

It is not a weakly prime, because it can be changed into another prime (1011023321149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505511660564 + 505511660565.

It is an arithmetic number, because the mean of its divisors is an integer number (505511660565).

Almost surely, 2^{1011023321129} is an apocalyptic number.

It is an amenable number.

1011023321129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011023321129 is an equidigital number, since it uses as much as digits as its factorization.

1011023321129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 1011023321129 in words is "one trillion, eleven billion, twenty-three million, three hundred twenty-one thousand, one hundred twenty-nine".