11375007481 has 4 divisors (see below), whose sum is σ = 11376262912. Its totient is φ = 11373752052.

The previous prime is 11375007461. The next prime is 11375007517. The reversal of 11375007481 is 18470057311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11375007481 - 2¹³ = 11374999289 is a prime.

It is a super-2 number, since 2×11375007481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11375007481.

It is not an unprimeable number, because it can be changed into a prime (11375007431) 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, 614025 + ... + 632278.

It is an arithmetic number, because the mean of its divisors is an integer number (2844065728).

Almost surely, 2^11375007481 is an apocalyptic number.

It is an amenable number.

11375007481 is a deficient number, since it is larger than the sum of its proper divisors (1255431).

11375007481 is an equidigital number, since it uses as much as digits as its factorization.

11375007481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255430.

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 11375007481 in words is "eleven billion, three hundred seventy-five million, seven thousand, four hundred eighty-one".