1011012199997 has 2 divisors, whose sum is σ = 1011012199998. Its totient is φ = 1011012199996.

The previous prime is 1011012199987. The next prime is 1011012200101. The reversal of 1011012199997 is 7999912101101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010063190361 + 949009636 = 1005019^2 + 30806^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011012199997 - 2¹² = 1011012195901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011012199927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505506099998 + 505506099999.

It is an arithmetic number, because the mean of its divisors is an integer number (505506099999).

Almost surely, 2^{1011012199997} is an apocalyptic number.

It is an amenable number.

1011012199997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011012199997 is an equidigital number, since it uses as much as digits as its factorization.

1011012199997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 50.

The spelling of 1011012199997 in words is "one trillion, eleven billion, twelve million, one hundred ninety-nine thousand, nine hundred ninety-seven".