1230101101021 has 8 divisors (see below), whose sum is σ = 1325140756184. Its totient is φ = 1135120944960.

The previous prime is 1230101100941. The next prime is 1230101101037. The reversal of 1230101101021 is 1201011010321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 102499224025 + 1127601876996 = 320155^2 + 1061886^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1230101101021 - 2⁹ = 1230101100509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230101100992 and 1230101101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230101801021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14831826 + ... + 14914531.

It is an arithmetic number, because the mean of its divisors is an integer number (165642594523).

Almost surely, 2^{1230101101021} is an apocalyptic number.

It is an amenable number.

1230101101021 is a deficient number, since it is larger than the sum of its proper divisors (95039655163).

1230101101021 is a wasteful number, since it uses less digits than its factorization.

1230101101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29749551.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1230101101021 its reverse (1201011010321), we get a palindrome (2431112111342).

The spelling of 1230101101021 in words is "one trillion, two hundred thirty billion, one hundred one million, one hundred one thousand, twenty-one".