1030200121 has 16 divisors (see below), whose sum is σ = 1109606400. Its totient is φ = 953518608.

The previous prime is 1030200109. The next prime is 1030200137. The reversal of 1030200121 is 1210020301.

It is a cyclic number.

It is not a de Polignac number, because 1030200121 - 2¹⁹ = 1029675833 is a prime.

It is a super-2 number, since 2×1030200121² = 2122624578616829282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030200098 and 1030200107.

It is not an unprimeable number, because it can be changed into a prime (1030200151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184456 + ... + 189958.

It is an arithmetic number, because the mean of its divisors is an integer number (69350400).

Almost surely, 2^1030200121 is an apocalyptic number.

It is an amenable number.

1030200121 is a deficient number, since it is larger than the sum of its proper divisors (79406279).

1030200121 is a wasteful number, since it uses less digits than its factorization.

1030200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1030200121 is about 32096.7306902120. The cubic root of 1030200121 is about 1009.9670351624.

Adding to 1030200121 its reverse (1210020301), we get a palindrome (2240220422).

The spelling of 1030200121 in words is "one billion, thirty million, two hundred thousand, one hundred twenty-one".