1021120233101 has 4 divisors (see below), whose sum is σ = 1021178358012. Its totient is φ = 1021062108192.

The previous prime is 1021120233061. The next prime is 1021120233137. The reversal of 1021120233101 is 1013320211201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 378349240201 + 642770992900 = 615101^2 + 801730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021120233101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021120233101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021120232101) 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, 29036096 + ... + 29071241.

It is an arithmetic number, because the mean of its divisors is an integer number (255294589503).

Almost surely, 2^{1021120233101} is an apocalyptic number.

It is an amenable number.

1021120233101 is a deficient number, since it is larger than the sum of its proper divisors (58124911).

1021120233101 is an equidigital number, since it uses as much as digits as its factorization.

1021120233101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58124910.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1021120233101 its reverse (1013320211201), we get a palindrome (2034440444302).

The spelling of 1021120233101 in words is "one trillion, twenty-one billion, one hundred twenty million, two hundred thirty-three thousand, one hundred one".