101131220925869 has 2 divisors, whose sum is σ = 101131220925870. Its totient is φ = 101131220925868.

The previous prime is 101131220925737. The next prime is 101131220925881. The reversal of 101131220925869 is 968529022131101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54978695516644 + 46152525409225 = 7414762^2 + 6793565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101131220925869 is a prime.

It is a super-2 number, since 2×101131220925869² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101131220985869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50565610462934 + 50565610462935.

It is an arithmetic number, because the mean of its divisors is an integer number (50565610462935).

Almost surely, 2^{101131220925869} is an apocalyptic number.

It is an amenable number.

101131220925869 is a deficient number, since it is larger than the sum of its proper divisors (1).

101131220925869 is an equidigital number, since it uses as much as digits as its factorization.

101131220925869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 101131220925869 in words is "one hundred one trillion, one hundred thirty-one billion, two hundred twenty million, nine hundred twenty-five thousand, eight hundred sixty-nine".