1002233001961 has 2 divisors, whose sum is σ = 1002233001962. Its totient is φ = 1002233001960.

The previous prime is 1002233001949. The next prime is 1002233001967. The reversal of 1002233001961 is 1691003322001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758912776336 + 243320225625 = 871156^2 + 493275^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002233001961 - 2²³ = 1002224613353 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002233001967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501116500980 + 501116500981.

It is an arithmetic number, because the mean of its divisors is an integer number (501116500981).

Almost surely, 2^{1002233001961} is an apocalyptic number.

It is an amenable number.

1002233001961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002233001961 is an equidigital number, since it uses as much as digits as its factorization.

1002233001961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

Adding to 1002233001961 its reverse (1691003322001), we get a palindrome (2693236323962).

The spelling of 1002233001961 in words is "one trillion, two billion, two hundred thirty-three million, one thousand, nine hundred sixty-one".