1000010901881 has 2 divisors, whose sum is σ = 1000010901882. Its totient is φ = 1000010901880.

The previous prime is 1000010901839. The next prime is 1000010901907. The reversal of 1000010901881 is 1881090100001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 850969350400 + 149041551481 = 922480^2 + 386059^2 .It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1881060100001 and 1000010601881.

It is a cyclic number.

It is not a de Polignac number, because 1000010901881 - 2²² = 1000006707577 is a prime.

It is a super-2 number, since 2×1000010901881² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1000010901181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500005450940 + 500005450941.

It is an arithmetic number, because the mean of its divisors is an integer number (500005450941).

Almost surely, 2^{1000010901881} is an apocalyptic number.

It is an amenable number.

1000010901881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000010901881 is an equidigital number, since it uses as much as digits as its factorization.

1000010901881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 29.

The spelling of 1000010901881 in words is "one trillion, ten million, nine hundred one thousand, eight hundred eighty-one".