1351344021201 has 24 divisors (see below), whose sum is σ = 2024305998624. Its totient is φ = 900864633600.

The previous prime is 1351344021173. The next prime is 1351344021211. The reversal of 1351344021201 is 1021204431531.

1351344021201 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 3 + 440 + 212 + 0 + 1 = 666.

It is not a de Polignac number, because 1351344021201 - 2¹¹ = 1351344019153 is a prime.

It is a super-2 number, since 2×1351344021201² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1351344021211) 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, 8438065 + ... + 8596721.

It is an arithmetic number, because the mean of its divisors is an integer number (84346083276).

Almost surely, 2^{1351344021201} is an apocalyptic number.

It is an amenable number.

1351344021201 is a deficient number, since it is larger than the sum of its proper divisors (672961977423).

1351344021201 is an equidigital number, since it uses as much as digits as its factorization.

1351344021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193723 (or 193711 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1351344021201 its reverse (1021204431531), we get a palindrome (2372548452732).

The spelling of 1351344021201 in words is "one trillion, three hundred fifty-one billion, three hundred forty-four million, twenty-one thousand, two hundred one".