1201132312002 has 64 divisors (see below), whose sum is σ = 3052387503360. Its totient is φ = 342967727232.

The previous prime is 1201132312001. The next prime is 1201132312013. The reversal of 1201132312002 is 2002132311021.

1201132312002 is a `hidden beast` number, since 120 + 113 + 231 + 200 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1201132312001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375283 + ... + 1594710.

It is an arithmetic number, because the mean of its divisors is an integer number (47693554740).

Almost surely, 2^{1201132312002} is an apocalyptic number.

1201132312002 is an abundant number, since it is smaller than the sum of its proper divisors (1851255191358).

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

1201132312002 is a wasteful number, since it uses less digits than its factorization.

1201132312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971624 (or 1971618 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1201132312002 its reverse (2002132311021), we get a palindrome (3203264623023).

It can be divided in two parts, 120113 and 2312002, that added together give a triangular number (2432115 = T₂₂₀₅).

The spelling of 1201132312002 in words is "one trillion, two hundred one billion, one hundred thirty-two million, three hundred twelve thousand, two".