231120013102009 has 2 divisors, whose sum is σ = 231120013102010. Its totient is φ = 231120013102008.

The previous prime is 231120013101977. The next prime is 231120013102031. The reversal of 231120013102009 is 900201310021132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158519985182784 + 72600027919225 = 12590472^2 + 8520565^2 .

It is a cyclic number.

It is not a de Polignac number, because 231120013102009 - 2⁵ = 231120013101977 is a prime.

It is not a weakly prime, because it can be changed into another prime (231120013102039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115560006551004 + 115560006551005.

It is an arithmetic number, because the mean of its divisors is an integer number (115560006551005).

Almost surely, 2^{231120013102009} is an apocalyptic number.

It is an amenable number.

231120013102009 is a deficient number, since it is larger than the sum of its proper divisors (1).

231120013102009 is an equidigital number, since it uses as much as digits as its factorization.

231120013102009 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 25.

The spelling of 231120013102009 in words is "two hundred thirty-one trillion, one hundred twenty billion, thirteen million, one hundred two thousand, nine".