100021201031 has 2 divisors, whose sum is σ = 100021201032. Its totient is φ = 100021201030.

The previous prime is 100021201019. The next prime is 100021201043. The reversal of 100021201031 is 130102120001.

It is a balanced prime because it is at equal distance from previous prime (100021201019) and next prime (100021201043).

It is a cyclic number.

It is not a de Polignac number, because 100021201031 - 2¹⁴ = 100021184647 is a prime.

It is a super-2 number, since 2×100021201031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100021201001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010600515 + 50010600516.

It is an arithmetic number, because the mean of its divisors is an integer number (50010600516).

Almost surely, 2^100021201031 is an apocalyptic number.

100021201031 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021201031 is an equidigital number, since it uses as much as digits as its factorization.

100021201031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 100021201031 its reverse (130102120001), we get a palindrome (230123321032).

The spelling of 100021201031 in words is "one hundred billion, twenty-one million, two hundred one thousand, thirty-one".