1351231277213 has 16 divisors (see below), whose sum is σ = 1422220187520. Its totient is φ = 1282151094336.

The previous prime is 1351231277167. The next prime is 1351231277237. The reversal of 1351231277213 is 3127721321531.

It is a cyclic number.

It is not a de Polignac number, because 1351231277213 - 2⁸ = 1351231276957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351231277273) 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, 373043 + ... + 1685711.

It is an arithmetic number, because the mean of its divisors is an integer number (88888761720).

Almost surely, 2^{1351231277213} is an apocalyptic number.

It is an amenable number.

1351231277213 is a deficient number, since it is larger than the sum of its proper divisors (70988910307).

1351231277213 is a wasteful number, since it uses less digits than its factorization.

1351231277213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313396.

The product of its digits is 52920, while the sum is 38.

Adding to 1351231277213 its reverse (3127721321531), we get a palindrome (4478952598744).

The spelling of 1351231277213 in words is "one trillion, three hundred fifty-one billion, two hundred thirty-one million, two hundred seventy-seven thousand, two hundred thirteen".