1151340431511 has 4 divisors (see below), whose sum is σ = 1535120575352. Its totient is φ = 767560287672.

The previous prime is 1151340431389. The next prime is 1151340431537.

1151340431511 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 1151340431511 - 2⁷ = 1151340431383 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 (1151340331511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191890071916 + ... + 191890071921.

It is an arithmetic number, because the mean of its divisors is an integer number (383780143838).

Almost surely, 2^{1151340431511} is an apocalyptic number.

1151340431511 is a deficient number, since it is larger than the sum of its proper divisors (383780143841).

1151340431511 is an equidigital number, since it uses as much as digits as its factorization.

1151340431511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383780143840.

The product of its (nonzero) digits is 3600, while the sum is 30.

It can be divided in two parts, 1151340 and 431511, that added together give a palindrome (1582851).

The spelling of 1151340431511 in words is "one trillion, one hundred fifty-one billion, three hundred forty million, four hundred thirty-one thousand, five hundred eleven".