11313121012 has 6 divisors (see below), whose sum is σ = 19797961778. Its totient is φ = 5656560504.

The previous prime is 11313121003. The next prime is 11313121013. The reversal of 11313121012 is 21012131311.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10421143056 + 891977956 = 102084^2 + 29866^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313121013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1414140123 + ... + 1414140130.

Almost surely, 2^11313121012 is an apocalyptic number.

It is an amenable number.

11313121012 is a deficient number, since it is larger than the sum of its proper divisors (8484840766).

11313121012 is a wasteful number, since it uses less digits than its factorization.

11313121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828280257 (or 2828280255 counting only the distinct ones).

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

Adding to 11313121012 its reverse (21012131311), we get a palindrome (32325252323).

The spelling of 11313121012 in words is "eleven billion, three hundred thirteen million, one hundred twenty-one thousand, twelve".