20012154513 has 16 divisors (see below), whose sum is σ = 29277581760. Its totient is φ = 12082809024.

The previous prime is 20012154499. The next prime is 20012154557. The reversal of 20012154513 is 31545121002.

It is a happy number.

It is not a de Polignac number, because 20012154513 - 2¹⁴ = 20012138129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20012154583) 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, 4838803 + ... + 4842936.

It is an arithmetic number, because the mean of its divisors is an integer number (1829848860).

Almost surely, 2^20012154513 is an apocalyptic number.

It is an amenable number.

20012154513 is a deficient number, since it is larger than the sum of its proper divisors (9265427247).

20012154513 is a wasteful number, since it uses less digits than its factorization.

20012154513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9681808.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 20012154513 its reverse (31545121002), we get a palindrome (51557275515).

The spelling of 20012154513 in words is "twenty billion, twelve million, one hundred fifty-four thousand, five hundred thirteen".