10421121465103 has 2 divisors, whose sum is σ = 10421121465104. Its totient is φ = 10421121465102.

The previous prime is 10421121465077. The next prime is 10421121465179. The reversal of 10421121465103 is 30156412112401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10421121465103 - 2¹⁷ = 10421121334031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10421127465103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210560732551 + 5210560732552.

It is an arithmetic number, because the mean of its divisors is an integer number (5210560732552).

Almost surely, 2^{10421121465103} is an apocalyptic number.

10421121465103 is a deficient number, since it is larger than the sum of its proper divisors (1).

10421121465103 is an equidigital number, since it uses as much as digits as its factorization.

10421121465103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 10421121465103 its reverse (30156412112401), we get a palindrome (40577533577504).

The spelling of 10421121465103 in words is "ten trillion, four hundred twenty-one billion, one hundred twenty-one million, four hundred sixty-five thousand, one hundred three".