1030012213121 has 4 divisors (see below), whose sum is σ = 1090601166852. Its totient is φ = 969423259392.

The previous prime is 1030012213103. The next prime is 1030012213193. The reversal of 1030012213121 is 1213122100301.

1030012213121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 739103003521 + 290909209600 = 859711^2 + 539360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030012213121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 60588953713 = 1030012213121 / (1 + 0 + 3 + 0 + 0 + 1 + 2 + 2 + 1 + 3 + 1 + 2 + 1).

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 1030012213121.

It is not an unprimeable number, because it can be changed into a prime (1030012213621) 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, 30294476840 + ... + 30294476873.

It is an arithmetic number, because the mean of its divisors is an integer number (272650291713).

Almost surely, 2^{1030012213121} is an apocalyptic number.

It is an amenable number.

1030012213121 is a deficient number, since it is larger than the sum of its proper divisors (60588953731).

1030012213121 is an equidigital number, since it uses as much as digits as its factorization.

1030012213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60588953730.

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

Adding to 1030012213121 its reverse (1213122100301), we get a palindrome (2243134313422).

The spelling of 1030012213121 in words is "one trillion, thirty billion, twelve million, two hundred thirteen thousand, one hundred twenty-one".