10033423781 has 2 divisors, whose sum is σ = 10033423782. Its totient is φ = 10033423780.

The previous prime is 10033423769. The next prime is 10033423801. The reversal of 10033423781 is 18732433001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9441231556 + 592192225 = 97166^2 + 24335^2 .

It is a cyclic number.

It is not a de Polignac number, because 10033423781 - 2¹⁰ = 10033422757 is a prime.

It is a super-2 number, since 2×10033423781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10033413781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5016711890 + 5016711891.

It is an arithmetic number, because the mean of its divisors is an integer number (5016711891).

Almost surely, 2^10033423781 is an apocalyptic number.

It is an amenable number.

10033423781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10033423781 is an equidigital number, since it uses as much as digits as its factorization.

10033423781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 10033423781 its reverse (18732433001), we get a palindrome (28765856782).

The spelling of 10033423781 in words is "ten billion, thirty-three million, four hundred twenty-three thousand, seven hundred eighty-one".