11145140253 has 12 divisors (see below), whose sum is σ = 17336885020. Its totient is φ = 6858547776.

The previous prime is 11145140239. The next prime is 11145140261. The reversal of 11145140253 is 35204154111.

It can be written as a sum of positive squares in 2 ways, for example, as 7712703684 + 3432436569 = 87822^2 + 58587^2 .

It is not a de Polignac number, because 11145140253 - 2⁸ = 11145139997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145140203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47628688 + ... + 47628921.

Almost surely, 2^11145140253 is an apocalyptic number.

11145140253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11145140253 is a deficient number, since it is larger than the sum of its proper divisors (6191744767).

11145140253 is a wasteful number, since it uses less digits than its factorization.

11145140253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95257628 (or 95257625 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 11145140253 its reverse (35204154111), we get a palindrome (46349294364).

The spelling of 11145140253 in words is "eleven billion, one hundred forty-five million, one hundred forty thousand, two hundred fifty-three".