1300001012451 has 24 divisors (see below), whose sum is σ = 1944049536000. Its totient is φ = 836127798912.

The previous prime is 1300001012441. The next prime is 1300001012491. The reversal of 1300001012451 is 1542101000031.

It is a de Polignac number, because none of the positive numbers 2^k-1300001012451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1300001012411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1613346 + ... + 2280983.

It is an arithmetic number, because the mean of its divisors is an integer number (81002064000).

Almost surely, 2^{1300001012451} is an apocalyptic number.

1300001012451 is a deficient number, since it is larger than the sum of its proper divisors (644048523549).

1300001012451 is a wasteful number, since it uses less digits than its factorization.

1300001012451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895643 (or 3895640 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 1300001012451 its reverse (1542101000031), we get a palindrome (2842102012482).

The spelling of 1300001012451 in words is "one trillion, three hundred billion, one million, twelve thousand, four hundred fifty-one".