1351051123111 has 4 divisors (see below), whose sum is σ = 1359339780472. Its totient is φ = 1342762465752.

The previous prime is 1351051123099. The next prime is 1351051123151. The reversal of 1351051123111 is 1113211501531.

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 1351051123111 - 2⁷ = 1351051122983 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 (1351051123151) 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, 4144328436 + ... + 4144328761.

It is an arithmetic number, because the mean of its divisors is an integer number (339834945118).

Almost surely, 2^{1351051123111} is an apocalyptic number.

1351051123111 is a deficient number, since it is larger than the sum of its proper divisors (8288657361).

1351051123111 is an equidigital number, since it uses as much as digits as its factorization.

1351051123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8288657360.

The product of its (nonzero) digits is 450, while the sum is 25.

Adding to 1351051123111 its reverse (1113211501531), we get a palindrome (2464262624642).

The spelling of 1351051123111 in words is "one trillion, three hundred fifty-one billion, fifty-one million, one hundred twenty-three thousand, one hundred eleven".