100020111010973 has 2 divisors, whose sum is σ = 100020111010974. Its totient is φ = 100020111010972.

The previous prime is 100020111010969. The next prime is 100020111010979. The reversal of 100020111010973 is 379010111020001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56031407780569 + 43988703230404 = 7485413^2 + 6632398^2 .

It is a cyclic number.

It is not a de Polignac number, because 100020111010973 - 2² = 100020111010969 is a prime.

It is a super-2 number, since 2×100020111010973² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100020111010979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010055505486 + 50010055505487.

It is an arithmetic number, because the mean of its divisors is an integer number (50010055505487).

Almost surely, 2^{100020111010973} is an apocalyptic number.

It is an amenable number.

100020111010973 is a deficient number, since it is larger than the sum of its proper divisors (1).

100020111010973 is an equidigital number, since it uses as much as digits as its factorization.

100020111010973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 26.

Adding to 100020111010973 its reverse (379010111020001), we get a palindrome (479030222030974).

The spelling of 100020111010973 in words is "one hundred trillion, twenty billion, one hundred eleven million, ten thousand, nine hundred seventy-three".