10603156261 has 2 divisors, whose sum is σ = 10603156262. Its totient is φ = 10603156260.

The previous prime is 10603156253. The next prime is 10603156297. The reversal of 10603156261 is 16265130601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9105930625 + 1497225636 = 95425^2 + 38694^2 .

It is a cyclic number.

It is not a de Polignac number, because 10603156261 - 2³ = 10603156253 is a prime.

It is a super-2 number, since 2×10603156261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10603156231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5301578130 + 5301578131.

It is an arithmetic number, because the mean of its divisors is an integer number (5301578131).

Almost surely, 2^10603156261 is an apocalyptic number.

It is an amenable number.

10603156261 is a deficient number, since it is larger than the sum of its proper divisors (1).

10603156261 is an equidigital number, since it uses as much as digits as its factorization.

10603156261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 10603156261 its reverse (16265130601), we get a palindrome (26868286862).

The spelling of 10603156261 in words is "ten billion, six hundred three million, one hundred fifty-six thousand, two hundred sixty-one".