1010213123121 has 24 divisors (see below), whose sum is σ = 1463326824960. Its totient is φ = 671570352000.

The previous prime is 1010213123111. The next prime is 1010213123141. The reversal of 1010213123121 is 1213213120101.

1010213123121 is a `hidden beast` number, since 10 + 10 + 21 + 312 + 312 + 1 = 666.

It is not a de Polignac number, because 1010213123121 - 2¹⁰ = 1010213122097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010213123094 and 1010213123103.

It is not an unprimeable number, because it can be changed into a prime (1010213123111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11066656 + ... + 11157566.

It is an arithmetic number, because the mean of its divisors is an integer number (60971951040).

Almost surely, 2^{1010213123121} is an apocalyptic number.

It is an amenable number.

1010213123121 is a deficient number, since it is larger than the sum of its proper divisors (453113701839).

1010213123121 is a wasteful number, since it uses less digits than its factorization.

1010213123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94397 (or 94394 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1010213123121 its reverse (1213213120101), we get a palindrome (2223426243222).

The spelling of 1010213123121 in words is "one trillion, ten billion, two hundred thirteen million, one hundred twenty-three thousand, one hundred twenty-one".