101021201001011 has 4 divisors (see below), whose sum is σ = 102405053069592. Its totient is φ = 99637348932432.

The previous prime is 101021201000989. The next prime is 101021201001113. The reversal of 101021201001011 is 110100102120101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101021201001011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101021201000983 and 101021201001001.

It is not an unprimeable number, because it can be changed into a prime (101021201001811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691926034181 + ... + 691926034326.

It is an arithmetic number, because the mean of its divisors is an integer number (25601263267398).

Almost surely, 2^{101021201001011} is an apocalyptic number.

101021201001011 is a deficient number, since it is larger than the sum of its proper divisors (1383852068581).

101021201001011 is an equidigital number, since it uses as much as digits as its factorization.

101021201001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383852068580.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101021201001011 its reverse (110100102120101), we get a palindrome (211121303121112).

The spelling of 101021201001011 in words is "one hundred one trillion, twenty-one billion, two hundred one million, one thousand, eleven".