1030012131121 has 4 divisors (see below), whose sum is σ = 1030015737972. Its totient is φ = 1030008524272.

The previous prime is 1030012131061. The next prime is 1030012131131. The reversal of 1030012131121 is 1211312100301.

It is a happy number.

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 929720208400 + 100291922721 = 964220^2 + 316689^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030012131121 - 2²⁵ = 1029978576689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030012131095 and 1030012131104.

It is not an unprimeable number, because it can be changed into a prime (1030012131131) 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, 1334410 + ... + 1959763.

It is an arithmetic number, because the mean of its divisors is an integer number (257503934493).

Almost surely, 2^{1030012131121} is an apocalyptic number.

It is an amenable number.

1030012131121 is a deficient number, since it is larger than the sum of its proper divisors (3606851).

1030012131121 is an equidigital number, since it uses as much as digits as its factorization.

1030012131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606850.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1030012131121 its reverse (1211312100301), we get a palindrome (2241324231422).

The spelling of 1030012131121 in words is "one trillion, thirty billion, twelve million, one hundred thirty-one thousand, one hundred twenty-one".