10133120020421 has 2 divisors, whose sum is σ = 10133120020422. Its totient is φ = 10133120020420.

The previous prime is 10133120020417. The next prime is 10133120020451. The reversal of 10133120020421 is 12402002133101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7971367336321 + 2161752684100 = 2823361^2 + 1470290^2 .

It is a cyclic number.

It is not a de Polignac number, because 10133120020421 - 2² = 10133120020417 is a prime.

It is a super-3 number, since 3×10133120020421³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10133120020393 and 10133120020402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10133120020451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5066560010210 + 5066560010211.

It is an arithmetic number, because the mean of its divisors is an integer number (5066560010211).

Almost surely, 2^{10133120020421} is an apocalyptic number.

It is an amenable number.

10133120020421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10133120020421 is an equidigital number, since it uses as much as digits as its factorization.

10133120020421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10133120020421 its reverse (12402002133101), we get a palindrome (22535122153522).

The spelling of 10133120020421 in words is "ten trillion, one hundred thirty-three billion, one hundred twenty million, twenty thousand, four hundred twenty-one".