11503200230511 has 32 divisors (see below), whose sum is σ = 17461085041152. Its totient is φ = 6667879320960.

The previous prime is 11503200230507. The next prime is 11503200230567.

11503200230511 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11503200230511 - 2² = 11503200230507 is a prime.

It is a super-2 number, since 2×11503200230511² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11503200210511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7208881 + ... + 8658773.

It is an arithmetic number, because the mean of its divisors is an integer number (545658907536).

Almost surely, 2^{11503200230511} is an apocalyptic number.

11503200230511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11503200230511 is a deficient number, since it is larger than the sum of its proper divisors (5957884810641).

11503200230511 is a wasteful number, since it uses less digits than its factorization.

11503200230511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460383.

The product of its (nonzero) digits is 900, while the sum is 24.

It can be divided in two parts, 11503200 and 230511, that added together give a palindrome (11733711).

The spelling of 11503200230511 in words is "eleven trillion, five hundred three billion, two hundred million, two hundred thirty thousand, five hundred eleven".