1320061141511 has 16 divisors (see below), whose sum is σ = 1597443414336. Its totient is φ = 1064884271616.

The previous prime is 1320061141471. The next prime is 1320061141519. The reversal of 1320061141511 is 1151411600231.

It is a cyclic number.

It is not a de Polignac number, because 1320061141511 - 2⁶ = 1320061141447 is a prime.

It is a super-2 number, since 2×1320061141511² (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 (1320061141519) 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, 3314585 + ... + 3691421.

It is an arithmetic number, because the mean of its divisors is an integer number (99840213396).

Almost surely, 2^{1320061141511} is an apocalyptic number.

1320061141511 is a deficient number, since it is larger than the sum of its proper divisors (277382272825).

1320061141511 is a wasteful number, since it uses less digits than its factorization.

1320061141511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406298.

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 1320061141511 its reverse (1151411600231), we get a palindrome (2471472741742).

The spelling of 1320061141511 in words is "one trillion, three hundred twenty billion, sixty-one million, one hundred forty-one thousand, five hundred eleven".