102031021201 has 2 divisors, whose sum is σ = 102031021202. Its totient is φ = 102031021200.

The previous prime is 102031021189. The next prime is 102031021207. The reversal of 102031021201 is 102120130201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64994403600 + 37036617601 = 254940^2 + 192449^2 .

It is an emirp because it is prime and its reverse (102120130201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102031021201 is a prime.

It is a super-2 number, since 2×102031021201² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102031021207) 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 as a sum of consecutive naturals, namely, 51015510600 + 51015510601.

It is an arithmetic number, because the mean of its divisors is an integer number (51015510601).

Almost surely, 2^102031021201 is an apocalyptic number.

It is an amenable number.

102031021201 is a deficient number, since it is larger than the sum of its proper divisors (1).

102031021201 is an equidigital number, since it uses as much as digits as its factorization.

102031021201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102031021201 its reverse (102120130201), we get a palindrome (204151151402).

The spelling of 102031021201 in words is "one hundred two billion, thirty-one million, twenty-one thousand, two hundred one".