133111131012 has 36 divisors (see below), whose sum is σ = 347329405696. Its totient is φ = 42939074160.

The previous prime is 133111131007. The next prime is 133111131053. The reversal of 133111131012 is 210131111331.

133111131012 is a `hidden beast` number, since 1 + 331 + 1 + 11 + 310 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59636488 + ... + 59638719.

Almost surely, 2^133111131012 is an apocalyptic number.

133111131012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133111131012 is an abundant number, since it is smaller than the sum of its proper divisors (214218274684).

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

133111131012 is a wasteful number, since it uses less digits than its factorization.

133111131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119275248 (or 119275243 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 133111131012 its reverse (210131111331), we get a palindrome (343242242343).

The spelling of 133111131012 in words is "one hundred thirty-three billion, one hundred eleven million, one hundred thirty-one thousand, twelve".