100121010001983 has 32 divisors (see below), whose sum is σ = 148580542656000. Its totient is φ = 66633444072000.

The previous prime is 100121010001981. The next prime is 100121010001997. The reversal of 100121010001983 is 389100010121001.

It is not a de Polignac number, because 100121010001983 - 2¹ = 100121010001981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121010001981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 506455708 + ... + 506653358.

It is an arithmetic number, because the mean of its divisors is an integer number (4643141958000).

Almost surely, 2^{100121010001983} is an apocalyptic number.

100121010001983 is a deficient number, since it is larger than the sum of its proper divisors (48459532654017).

100121010001983 is a wasteful number, since it uses less digits than its factorization.

100121010001983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229580 (or 229574 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

Adding to 100121010001983 its reverse (389100010121001), we get a palindrome (489221020122984).

The spelling of 100121010001983 in words is "one hundred trillion, one hundred twenty-one billion, ten million, one thousand, nine hundred eighty-three".