1312002001423 has 16 divisors (see below), whose sum is σ = 1462371805440. Its totient is φ = 1169771760000.

The previous prime is 1312002001411. The next prime is 1312002001439. The reversal of 1312002001423 is 3241002002131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1312002001423 - 2¹³ = 1312001993231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312002001423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312002001403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6539148 + ... + 6736798.

It is an arithmetic number, because the mean of its divisors is an integer number (91398237840).

Almost surely, 2^{1312002001423} is an apocalyptic number.

1312002001423 is a deficient number, since it is larger than the sum of its proper divisors (150369804017).

1312002001423 is a wasteful number, since it uses less digits than its factorization.

1312002001423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218238.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1312002001423 its reverse (3241002002131), we get a palindrome (4553004003554).

The spelling of 1312002001423 in words is "one trillion, three hundred twelve billion, two million, one thousand, four hundred twenty-three".