11311212130 has 16 divisors (see below), whose sum is σ = 20362352184. Its totient is φ = 4524002560.

The previous prime is 11311212097. The next prime is 11311212139. The reversal of 11311212130 is 3121211311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8125399881 + 3185812249 = 90141^2 + 56443^2 .

It is not an unprimeable number, because it can be changed into a prime (11311212139) 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, 47370 + ... + 157690.

Almost surely, 2^11311212130 is an apocalyptic number.

11311212130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311212130 is a deficient number, since it is larger than the sum of its proper divisors (9051140054).

11311212130 is a wasteful number, since it uses less digits than its factorization.

11311212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120581.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11311212130 its reverse (3121211311), we get a palindrome (14432423441).

The spelling of 11311212130 in words is "eleven billion, three hundred eleven million, two hundred twelve thousand, one hundred thirty".