121010203733513 has 2 divisors, whose sum is σ = 121010203733514. Its totient is φ = 121010203733512.

The previous prime is 121010203733473. The next prime is 121010203733519. The reversal of 121010203733513 is 315337302010121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60824213824144 + 60185989909369 = 7798988^2 + 7757963^2 .

It is a cyclic number.

It is not a de Polignac number, because 121010203733513 - 2¹⁴ = 121010203717129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121010203733513.

It is not a weakly prime, because it can be changed into another prime (121010203733519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505101866756 + 60505101866757.

It is an arithmetic number, because the mean of its divisors is an integer number (60505101866757).

Almost surely, 2^{121010203733513} is an apocalyptic number.

It is an amenable number.

121010203733513 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010203733513 is an equidigital number, since it uses as much as digits as its factorization.

121010203733513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

Adding to 121010203733513 its reverse (315337302010121), we get a palindrome (436347505743634).

The spelling of 121010203733513 in words is "one hundred twenty-one trillion, ten billion, two hundred three million, seven hundred thirty-three thousand, five hundred thirteen".