11312143213 has 32 divisors (see below), whose sum is σ = 13818263040. Its totient is φ = 9039790080.

The previous prime is 11312143211. The next prime is 11312143217. The reversal of 11312143213 is 31234121311.

It is a cyclic number.

It is not a de Polignac number, because 11312143213 - 2¹ = 11312143211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312143211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6177208 + ... + 6179038.

It is an arithmetic number, because the mean of its divisors is an integer number (431820720).

Almost surely, 2^11312143213 is an apocalyptic number.

It is an amenable number.

11312143213 is a deficient number, since it is larger than the sum of its proper divisors (2506119827).

11312143213 is a wasteful number, since it uses less digits than its factorization.

11312143213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317.

The product of its digits is 432, while the sum is 22.

Adding to 11312143213 its reverse (31234121311), we get a palindrome (42546264524).

The spelling of 11312143213 in words is "eleven billion, three hundred twelve million, one hundred forty-three thousand, two hundred thirteen".