11211031010 has 16 divisors (see below), whose sum is σ = 20181454776. Its totient is φ = 4484057088.

The previous prime is 11211031009. The next prime is 11211031019. The reversal of 11211031010 is 1013011211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8266991929 + 2944039081 = 90923^2 + 54259^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11211030982 and 11211031000.

It is not an unprimeable number, because it can be changed into a prime (11211031019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115532 + ... + 189128.

Almost surely, 2^11211031010 is an apocalyptic number.

11211031010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211031010 is a deficient number, since it is larger than the sum of its proper divisors (8970423766).

11211031010 is a wasteful number, since it uses less digits than its factorization.

11211031010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88837.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11211031010 its reverse (1013011211), we get a palindrome (12224042221).

The spelling of 11211031010 in words is "eleven billion, two hundred eleven million, thirty-one thousand, ten".