1371352256511 has 4 divisors (see below), whose sum is σ = 1828469675352. Its totient is φ = 914234837672.

The previous prime is 1371352256471. The next prime is 1371352256579. The reversal of 1371352256511 is 1156522531731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1371352256511 - 2¹⁰ = 1371352255487 is a prime.

It is a super-2 number, since 2×1371352256511² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371352256111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228558709416 + ... + 228558709421.

It is an arithmetic number, because the mean of its divisors is an integer number (457117418838).

Almost surely, 2^{1371352256511} is an apocalyptic number.

1371352256511 is a deficient number, since it is larger than the sum of its proper divisors (457117418841).

1371352256511 is an equidigital number, since it uses as much as digits as its factorization.

1371352256511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457117418840.

The product of its digits is 189000, while the sum is 42.

The spelling of 1371352256511 in words is "one trillion, three hundred seventy-one billion, three hundred fifty-two million, two hundred fifty-six thousand, five hundred eleven".