1020001121233 has 2 divisors, whose sum is σ = 1020001121234. Its totient is φ = 1020001121232.

The previous prime is 1020001121173. The next prime is 1020001121267. The reversal of 1020001121233 is 3321211000201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567863223489 + 452137897744 = 753567^2 + 672412^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020001121233 - 2¹⁷ = 1020000990161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020001121533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510000560616 + 510000560617.

It is an arithmetic number, because the mean of its divisors is an integer number (510000560617).

Almost surely, 2^{1020001121233} is an apocalyptic number.

It is an amenable number.

1020001121233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020001121233 is an equidigital number, since it uses as much as digits as its factorization.

1020001121233 is an evil number, because the sum of its binary digits is even.

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

Adding to 1020001121233 its reverse (3321211000201), we get a palindrome (4341212121434).

The spelling of 1020001121233 in words is "one trillion, twenty billion, one million, one hundred twenty-one thousand, two hundred thirty-three".