1001012193 has 6 divisors (see below), whose sum is σ = 1445906514. Its totient is φ = 667341456.

The previous prime is 1001012191. The next prime is 1001012197. The reversal of 1001012193 is 3912101001.

It can be written as a sum of positive squares in only one way, i.e., 992439009 + 8573184 = 31503^2 + 2928^2 .

It is not a de Polignac number, because 1001012193 - 2¹ = 1001012191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001012191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55611780 + ... + 55611797.

It is an arithmetic number, because the mean of its divisors is an integer number (240984419).

Almost surely, 2^1001012193 is an apocalyptic number.

It is an amenable number.

1001012193 is a deficient number, since it is larger than the sum of its proper divisors (444894321).

1001012193 is a wasteful number, since it uses less digits than its factorization.

1001012193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111223583 (or 111223580 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 1001012193 is about 31638.7767304616. The cubic root of 1001012193 is about 1000.3372838935.

Adding to 1001012193 its reverse (3912101001), we get a palindrome (4913113194).

The spelling of 1001012193 in words is "one billion, one million, twelve thousand, one hundred ninety-three".