10240121545 has 32 divisors (see below), whose sum is σ = 12715186176. Its totient is φ = 7913030400.

The previous prime is 10240121537. The next prime is 10240121587. The reversal of 10240121545 is 54512104201.

It is not a de Polignac number, because 10240121545 - 2³ = 10240121537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9419992 + ... + 9421078.

It is an arithmetic number, because the mean of its divisors is an integer number (397349568).

Almost surely, 2^10240121545 is an apocalyptic number.

It is an amenable number.

10240121545 is a deficient number, since it is larger than the sum of its proper divisors (2475064631).

10240121545 is a wasteful number, since it uses less digits than its factorization.

10240121545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 10240121545 its reverse (54512104201), we get a palindrome (64752225746).

The spelling of 10240121545 in words is "ten billion, two hundred forty million, one hundred twenty-one thousand, five hundred forty-five".