1010191911002 has 4 divisors (see below), whose sum is σ = 1515287866506. Its totient is φ = 505095955500.

The previous prime is 1010191910989. The next prime is 1010191911007. The reversal of 1010191911002 is 2001191910101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 505394449921 + 504797461081 = 710911^2 + 710491^2 .

It is not an unprimeable number, because it can be changed into a prime (1010191911007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252547977749 + ... + 252547977752.

Almost surely, 2^{1010191911002} is an apocalyptic number.

1010191911002 is a deficient number, since it is larger than the sum of its proper divisors (505095955504).

1010191911002 is an equidigital number, since it uses as much as digits as its factorization.

1010191911002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505095955503.

The product of its (nonzero) digits is 162, while the sum is 26.

Subtracting 1010191911002 from its reverse (2001191910101), we obtain a palindrome (990999999099).

The spelling of 1010191911002 in words is "one trillion, ten billion, one hundred ninety-one million, nine hundred eleven thousand, two".