331212134011 has 4 divisors (see below), whose sum is σ = 361322328024. Its totient is φ = 301101940000.

The previous prime is 331212134009. The next prime is 331212134021. The reversal of 331212134011 is 110431212133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110431212133 = 11 ⋅10039201103.

It is a cyclic number.

It is not a de Polignac number, because 331212134011 - 2¹ = 331212134009 is a prime.

It is a super-2 number, since 2×331212134011² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331212134021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15055096990 + ... + 15055097011.

It is an arithmetic number, because the mean of its divisors is an integer number (90330582006).

Almost surely, 2^331212134011 is an apocalyptic number.

331212134011 is a deficient number, since it is larger than the sum of its proper divisors (30110194013).

331212134011 is a wasteful number, since it uses less digits than its factorization.

331212134011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30110194012.

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

Adding to 331212134011 its reverse (110431212133), we get a palindrome (441643346144).

The spelling of 331212134011 in words is "three hundred thirty-one billion, two hundred twelve million, one hundred thirty-four thousand, eleven".