100020123201 has 32 divisors (see below), whose sum is σ = 138782505600. Its totient is φ = 64019704320.

The previous prime is 100020123199. The next prime is 100020123223. The reversal of 100020123201 is 102321020001.

It is not a de Polignac number, because 100020123201 - 2¹ = 100020123199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100020123701) 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 in 31 ways as a sum of consecutive naturals, for example, 5018466 + ... + 5038356.

It is an arithmetic number, because the mean of its divisors is an integer number (4336953300).

Almost surely, 2^100020123201 is an apocalyptic number.

It is an amenable number.

100020123201 is a deficient number, since it is larger than the sum of its proper divisors (38762382399).

100020123201 is a wasteful number, since it uses less digits than its factorization.

100020123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20529.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 100020123201 its reverse (102321020001), we get a palindrome (202341143202).

The spelling of 100020123201 in words is "one hundred billion, twenty million, one hundred twenty-three thousand, two hundred one".