10111011111010 has 8 divisors (see below), whose sum is σ = 18199819999836. Its totient is φ = 4044404444400.

The previous prime is 10111011110983. The next prime is 10111011111017. The reversal of 10111011111010 is 1011111011101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9542026026289 + 568985084721 = 3089017^2 + 754311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 1011101111101 = 10111011111010 / (1 + 0 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (10111011111017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505550555541 + ... + 505550555560.

Almost surely, 2^{10111011111010} is an apocalyptic number.

10111011111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10111011111010 is a deficient number, since it is larger than the sum of its proper divisors (8088808888826).

10111011111010 is a wasteful number, since it uses less digits than its factorization.

10111011111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011101111108.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 10111011111010 its reverse (1011111011101), we get a palindrome (11122122122111).

Subtracting from 10111011111010 its reverse (1011111011101), we obtain a palindrome (9099900099909).

The spelling of 10111011111010 in words is "ten trillion, one hundred eleven billion, eleven million, one hundred eleven thousand, ten".