1101232031129 has 2 divisors, whose sum is σ = 1101232031130. Its totient is φ = 1101232031128.

The previous prime is 1101232031111. The next prime is 1101232031131. The reversal of 1101232031129 is 9211302321011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008974043529 + 92257987600 = 1004477^2 + 303740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101232031129 is a prime.

Together with 1101232031131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101232031098 and 1101232031107.

It is not a weakly prime, because it can be changed into another prime (1101232031189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550616015564 + 550616015565.

It is an arithmetic number, because the mean of its divisors is an integer number (550616015565).

Almost surely, 2^{1101232031129} is an apocalyptic number.

It is an amenable number.

1101232031129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101232031129 is an equidigital number, since it uses as much as digits as its factorization.

1101232031129 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 1101232031129 in words is "one trillion, one hundred one billion, two hundred thirty-two million, thirty-one thousand, one hundred twenty-nine".