11111311010 has 32 divisors (see below), whose sum is σ = 21198713472. Its totient is φ = 4178763520.

The previous prime is 11111311009. The next prime is 11111311039. The reversal of 11111311010 is 1011311111.

It is a super-2 number, since 2×11111311010² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11111310982 and 11111311000.

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, 133865 + ... + 200355.

It is an arithmetic number, because the mean of its divisors is an integer number (662459796).

Almost surely, 2^11111311010 is an apocalyptic number.

11111311010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111311010 is a deficient number, since it is larger than the sum of its proper divisors (10087402462).

11111311010 is a wasteful number, since it uses less digits than its factorization.

11111311010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67498.

The product of its (nonzero) digits is 3, while the sum is 11.

Adding to 11111311010 its reverse (1011311111), we get a palindrome (12122622121).

The spelling of 11111311010 in words is "eleven billion, one hundred eleven million, three hundred eleven thousand, ten".