1013011210121 has 4 divisors (see below), whose sum is σ = 1072600104852. Its totient is φ = 953422315392.

The previous prime is 1013011210091. The next prime is 1013011210153. The reversal of 1013011210121 is 1210121103101.

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 673489400896 + 339521809225 = 820664^2 + 582685^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013011210121 - 2¹⁰ = 1013011209097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1013011210096 and 1013011210105.

It is not an unprimeable number, because it can be changed into a prime (1013011213121) 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 3 ways as a sum of consecutive naturals, for example, 29794447340 + ... + 29794447373.

It is an arithmetic number, because the mean of its divisors is an integer number (268150026213).

Almost surely, 2^{1013011210121} is an apocalyptic number.

It is an amenable number.

1013011210121 is a deficient number, since it is larger than the sum of its proper divisors (59588894731).

1013011210121 is an equidigital number, since it uses as much as digits as its factorization.

1013011210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59588894730.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1013011210121 its reverse (1210121103101), we get a palindrome (2223132313222).

The spelling of 1013011210121 in words is "one trillion, thirteen billion, eleven million, two hundred ten thousand, one hundred twenty-one".