1101120001997 has 2 divisors, whose sum is σ = 1101120001998. Its totient is φ = 1101120001996.

The previous prime is 1101120001973. The next prime is 1101120002053. The reversal of 1101120001997 is 7991000211011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999468070756 + 101651931241 = 999734^2 + 318829^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101120001997 - 2⁸ = 1101120001741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101120001907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550560000998 + 550560000999.

It is an arithmetic number, because the mean of its divisors is an integer number (550560000999).

Almost surely, 2^{1101120001997} is an apocalyptic number.

It is an amenable number.

1101120001997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101120001997 is an equidigital number, since it uses as much as digits as its factorization.

1101120001997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 32.

The spelling of 1101120001997 in words is "one trillion, one hundred one billion, one hundred twenty million, one thousand, nine hundred ninety-seven".