11111011111010 has 32 divisors (see below), whose sum is σ = 20155468842432. Its totient is φ = 4409825842240.

The previous prime is 11111011110937. The next prime is 11111011111043. The reversal of 11111011111010 is 1011111011111.

It is a junction number, because it is equal to n+sod(n) for n = 11111011110982 and 11111011111000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8288552 + ... + 9535308.

It is an arithmetic number, because the mean of its divisors is an integer number (629858401326).

Almost surely, 2^{11111011111010} is an apocalyptic number.

11111011111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111011111010 is a deficient number, since it is larger than the sum of its proper divisors (9044457731422).

11111011111010 is a wasteful number, since it uses less digits than its factorization.

11111011111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253698.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 11111011111010 its reverse (1011111011111), we get a palindrome (12122122122121).

The spelling of 11111011111010 in words is "eleven trillion, one hundred eleven billion, eleven million, one hundred eleven thousand, ten".