102033032021 has 4 divisors (see below), whose sum is σ = 102106916844. Its totient is φ = 101959147200.

The previous prime is 102033032011. The next prime is 102033032051. The reversal of 102033032021 is 120230330201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120230330201 = 155521 ⋅773081.

It can be written as a sum of positive squares in 2 ways, for example, as 18965145796 + 83067886225 = 137714^2 + 288215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102033032021 is a prime.

It is a super-2 number, since 2×102033032021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102033032011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36940340 + ... + 36943101.

It is an arithmetic number, because the mean of its divisors is an integer number (25526729211).

Almost surely, 2^102033032021 is an apocalyptic number.

It is an amenable number.

102033032021 is a deficient number, since it is larger than the sum of its proper divisors (73884823).

102033032021 is an equidigital number, since it uses as much as digits as its factorization.

102033032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73884822.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 102033032021 its reverse (120230330201), we get a palindrome (222263362222).

The spelling of 102033032021 in words is "one hundred two billion, thirty-three million, thirty-two thousand, twenty-one".