10421220513 has 8 divisors (see below), whose sum is σ = 15158138976. Its totient is φ = 6315891200.

The previous prime is 10421220497. The next prime is 10421220521. The reversal of 10421220513 is 31502212401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10421220513 - 2⁴ = 10421220497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10421220513.

It is not an unprimeable number, because it can be changed into a prime (10421220013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157897248 + ... + 157897313.

It is an arithmetic number, because the mean of its divisors is an integer number (1894767372).

Almost surely, 2^10421220513 is an apocalyptic number.

It is an amenable number.

10421220513 is a deficient number, since it is larger than the sum of its proper divisors (4736918463).

10421220513 is a wasteful number, since it uses less digits than its factorization.

10421220513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315794575.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 10421220513 its reverse (31502212401), we get a palindrome (41923432914).

The spelling of 10421220513 in words is "ten billion, four hundred twenty-one million, two hundred twenty thousand, five hundred thirteen".