10561521031037 has 2 divisors, whose sum is σ = 10561521031038. Its totient is φ = 10561521031036.

The previous prime is 10561521031021. The next prime is 10561521031043. The reversal of 10561521031037 is 73013012516501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10514804963716 + 46716067321 = 3242654^2 + 216139^2 .

It is a cyclic number.

It is not a de Polignac number, because 10561521031037 - 2⁴ = 10561521031021 is a prime.

It is a super-2 number, since 2×10561521031037² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10561521030988 and 10561521031006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10561521031067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280760515518 + 5280760515519.

It is an arithmetic number, because the mean of its divisors is an integer number (5280760515519).

Almost surely, 2^{10561521031037} is an apocalyptic number.

It is an amenable number.

10561521031037 is a deficient number, since it is larger than the sum of its proper divisors (1).

10561521031037 is an equidigital number, since it uses as much as digits as its factorization.

10561521031037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 35.

Adding to 10561521031037 its reverse (73013012516501), we get a palindrome (83574533547538).

The spelling of 10561521031037 in words is "ten trillion, five hundred sixty-one billion, five hundred twenty-one million, thirty-one thousand, thirty-seven".