1001020123101 has 8 divisors (see below), whose sum is σ = 1413204879744. Its totient is φ = 628091057600.

The previous prime is 1001020123097. The next prime is 1001020123111. The reversal of 1001020123101 is 1013210201001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1001020123101 - 2² = 1001020123097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001020123111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9813922725 + ... + 9813922826.

It is an arithmetic number, because the mean of its divisors is an integer number (176650609968).

Almost surely, 2^{1001020123101} is an apocalyptic number.

It is an amenable number.

1001020123101 is a deficient number, since it is larger than the sum of its proper divisors (412184756643).

1001020123101 is a wasteful number, since it uses less digits than its factorization.

1001020123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19627845571.

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

Adding to 1001020123101 its reverse (1013210201001), we get a palindrome (2014230324102).

The spelling of 1001020123101 in words is "one trillion, one billion, twenty million, one hundred twenty-three thousand, one hundred one".