11111001010 has 8 divisors (see below), whose sum is σ = 19999801836. Its totient is φ = 4444400400.

The previous prime is 11111000993. The next prime is 11111001029. The reversal of 11111001010 is 1010011111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10953924921 + 157076089 = 104661^2 + 12533^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 11111000984 and 11111001002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555550041 + ... + 555550060.

Almost surely, 2^11111001010 is an apocalyptic number.

11111001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111001010 is a deficient number, since it is larger than the sum of its proper divisors (8888800826).

11111001010 is a wasteful number, since it uses less digits than its factorization.

11111001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111100108.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 11111001010 its reverse (1010011111), we get a palindrome (12121012121).

The spelling of 11111001010 in words is "eleven billion, one hundred eleven million, one thousand, ten".