101111030321021 has 16 divisors (see below), whose sum is σ = 119703217948800. Its totient is φ = 83563935553728.

The previous prime is 101111030321003. The next prime is 101111030321027. The reversal of 101111030321021 is 120123030111101.

It is not a de Polignac number, because 101111030321021 - 2²² = 101111026126717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111030321027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339608291 + ... + 339905888.

It is an arithmetic number, because the mean of its divisors is an integer number (7481451121800).

Almost surely, 2^{101111030321021} is an apocalyptic number.

It is an amenable number.

101111030321021 is a deficient number, since it is larger than the sum of its proper divisors (18592187627779).

101111030321021 is an equidigital number, since it uses as much as digits as its factorization.

101111030321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679514948.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 101111030321021 its reverse (120123030111101), we get a palindrome (221234060432122).

The spelling of 101111030321021 in words is "one hundred one trillion, one hundred eleven billion, thirty million, three hundred twenty-one thousand, twenty-one".