11125603501 has 16 divisors (see below), whose sum is σ = 11834380800. Its totient is φ = 10429614000.

The previous prime is 11125603487. The next prime is 11125603537. The reversal of 11125603501 is 10530652111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11125603501 - 2⁵ = 11125603469 is a prime.

It is a super-2 number, since 2×11125603501² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11125603571) 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, 887326 + ... + 899776.

It is an arithmetic number, because the mean of its divisors is an integer number (739648800).

Almost surely, 2^11125603501 is an apocalyptic number.

It is an amenable number.

11125603501 is a deficient number, since it is larger than the sum of its proper divisors (708777299).

11125603501 is a wasteful number, since it uses less digits than its factorization.

11125603501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12960.

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 11125603501 in words is "eleven billion, one hundred twenty-five million, six hundred three thousand, five hundred one".