1030121230321 has 16 divisors (see below), whose sum is σ = 1114762327360. Its totient is φ = 948575499840.

The previous prime is 1030121230319. The next prime is 1030121230343. The reversal of 1030121230321 is 1230321210301.

It is a cyclic number.

It is not a de Polignac number, because 1030121230321 - 2¹ = 1030121230319 is a prime.

It is a super-2 number, since 2×1030121230321² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1030121230921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33975 + ... + 1435756.

It is an arithmetic number, because the mean of its divisors is an integer number (69672645460).

Almost surely, 2^{1030121230321} is an apocalyptic number.

It is an amenable number.

1030121230321 is a deficient number, since it is larger than the sum of its proper divisors (84641097039).

1030121230321 is a wasteful number, since it uses less digits than its factorization.

1030121230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470784.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1030121230321 its reverse (1230321210301), we get a palindrome (2260442440622).

The spelling of 1030121230321 in words is "one trillion, thirty billion, one hundred twenty-one million, two hundred thirty thousand, three hundred twenty-one".