1021230121003 has 32 divisors (see below), whose sum is σ = 1153108915200. Its totient is φ = 898663693824.

The previous prime is 1021230120983. The next prime is 1021230121019. The reversal of 1021230121003 is 3001210321201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021230121003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021230121063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72384676 + ... + 72398782.

It is an arithmetic number, because the mean of its divisors is an integer number (36034653600).

Almost surely, 2^{1021230121003} is an apocalyptic number.

1021230121003 is a deficient number, since it is larger than the sum of its proper divisors (131878794197).

1021230121003 is a wasteful number, since it uses less digits than its factorization.

1021230121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17059.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1021230121003 its reverse (3001210321201), we get a palindrome (4022440442204).

The spelling of 1021230121003 in words is "one trillion, twenty-one billion, two hundred thirty million, one hundred twenty-one thousand, three".