1312240403201 has 32 divisors (see below), whose sum is σ = 1800072610560. Its totient is φ = 925751586816.

The previous prime is 1312240403171. The next prime is 1312240403237. The reversal of 1312240403201 is 1023040422131.

It is not a de Polignac number, because 1312240403201 - 2²⁶ = 1312173294337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1312240403261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22292936 + ... + 22351721.

It is an arithmetic number, because the mean of its divisors is an integer number (56252269080).

Almost surely, 2^{1312240403201} is an apocalyptic number.

It is an amenable number.

1312240403201 is a deficient number, since it is larger than the sum of its proper divisors (487832207359).

1312240403201 is a wasteful number, since it uses less digits than its factorization.

1312240403201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44644713.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1312240403201 its reverse (1023040422131), we get a palindrome (2335280825332).

The spelling of 1312240403201 in words is "one trillion, three hundred twelve billion, two hundred forty million, four hundred three thousand, two hundred one".