201331011012 has 24 divisors (see below), whose sum is σ = 482468910336. Its totient is φ = 65296543968.

The previous prime is 201331010891. The next prime is 201331011023. The reversal of 201331011012 is 210110133102.

It is a happy number.

It is a super-2 number, since 2×201331011012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201331010982 and 201331011000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226723668 + ... + 226724555.

It is an arithmetic number, because the mean of its divisors is an integer number (20102871264).

Almost surely, 2^201331011012 is an apocalyptic number.

It is an amenable number.

201331011012 is an abundant number, since it is smaller than the sum of its proper divisors (281137899324).

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

201331011012 is a wasteful number, since it uses less digits than its factorization.

201331011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453448267 (or 453448265 counting only the distinct ones).

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

Adding to 201331011012 its reverse (210110133102), we get a palindrome (411441144114).

The spelling of 201331011012 in words is "two hundred one billion, three hundred thirty-one million, eleven thousand, twelve".