1201001312002 has 4 divisors (see below), whose sum is σ = 1801501968006. Its totient is φ = 600500656000.

The previous prime is 1201001311943. The next prime is 1201001312009. The reversal of 1201001312002 is 2002131001021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1138405775521 + 62595536481 = 1066961^2 + 250191^2 .

It is not an unprimeable number, because it can be changed into a prime (1201001312009) 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 as a sum of consecutive naturals, namely, 300250327999 + ... + 300250328002.

Almost surely, 2^{1201001312002} is an apocalyptic number.

1201001312002 is a deficient number, since it is larger than the sum of its proper divisors (600500656004).

1201001312002 is an equidigital number, since it uses as much as digits as its factorization.

1201001312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600500656003.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1201001312002 its reverse (2002131001021), we get a palindrome (3203132313023).

The spelling of 1201001312002 in words is "one trillion, two hundred one billion, one million, three hundred twelve thousand, two".