1351126506091 has 4 divisors (see below), whose sum is σ = 1351134733752. Its totient is φ = 1351118278432.

The previous prime is 1351126506053. The next prime is 1351126506101. The reversal of 1351126506091 is 1906056211531.

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 1351126506091 - 2²⁹ = 1350589635179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351126506001) 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, 3862381 + ... + 4197646.

It is an arithmetic number, because the mean of its divisors is an integer number (337783683438).

Almost surely, 2^{1351126506091} is an apocalyptic number.

1351126506091 is a deficient number, since it is larger than the sum of its proper divisors (8227661).

1351126506091 is an equidigital number, since it uses as much as digits as its factorization.

1351126506091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8227660.

The product of its (nonzero) digits is 48600, while the sum is 40.

The spelling of 1351126506091 in words is "one trillion, three hundred fifty-one billion, one hundred twenty-six million, five hundred six thousand, ninety-one".