20210100037 has 2 divisors, whose sum is σ = 20210100038. Its totient is φ = 20210100036.

The previous prime is 20210100019. The next prime is 20210100047. The reversal of 20210100037 is 73000101202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16692898401 + 3517201636 = 129201^2 + 59306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20210100037 is a prime.

It is a super-3 number, since 3×20210100037³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210100007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105050018 + 10105050019.

It is an arithmetic number, because the mean of its divisors is an integer number (10105050019).

Almost surely, 2^20210100037 is an apocalyptic number.

It is an amenable number.

20210100037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210100037 is an equidigital number, since it uses as much as digits as its factorization.

20210100037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 16.

Adding to 20210100037 its reverse (73000101202), we get a palindrome (93210201239).

The spelling of 20210100037 in words is "twenty billion, two hundred ten million, one hundred thousand, thirty-seven".