11030131212 has 24 divisors (see below), whose sum is σ = 25778703216. Its totient is φ = 3670748928.

The previous prime is 11030131169. The next prime is 11030131219. The reversal of 11030131212 is 21213103011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11030131191 and 11030131200.

It is not an unprimeable number, because it can be changed into a prime (11030131219) 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, 737473 + ... + 752280.

It is an arithmetic number, because the mean of its divisors is an integer number (1074112634).

Almost surely, 2^11030131212 is an apocalyptic number.

11030131212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11030131212 is an abundant number, since it is smaller than the sum of its proper divisors (14748572004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11030131212 is a wasteful number, since it uses less digits than its factorization.

11030131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490377 (or 1490375 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11030131212 its reverse (21213103011), we get a palindrome (32243234223).

The spelling of 11030131212 in words is "eleven billion, thirty million, one hundred thirty-one thousand, two hundred twelve".