1023010103261 has 2 divisors, whose sum is σ = 1023010103262. Its totient is φ = 1023010103260.

The previous prime is 1023010103257. The next prime is 1023010103293. The reversal of 1023010103261 is 1623010103201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 599184364900 + 423825738361 = 774070^2 + 651019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023010103261 - 2² = 1023010103257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023010103761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511505051630 + 511505051631.

It is an arithmetic number, because the mean of its divisors is an integer number (511505051631).

Almost surely, 2^{1023010103261} is an apocalyptic number.

It is an amenable number.

1023010103261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023010103261 is an equidigital number, since it uses as much as digits as its factorization.

1023010103261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1023010103261 its reverse (1623010103201), we get a palindrome (2646020206462).

The spelling of 1023010103261 in words is "one trillion, twenty-three billion, ten million, one hundred three thousand, two hundred sixty-one".