1101931516225 has 12 divisors (see below), whose sum is σ = 1366578547884. Its totient is φ = 881426846720.

The previous prime is 1101931516193. The next prime is 1101931516247. The reversal of 1101931516225 is 5226151391011.

It can be written as a sum of positive squares in 6 ways, for example, as 12331658304 + 1089599857921 = 111048^2 + 1043839^2 .

It is not a de Polignac number, because 1101931516225 - 2⁵ = 1101931516193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2769004 + ... + 3141853.

It is an arithmetic number, because the mean of its divisors is an integer number (113881545657).

Almost surely, 2^{1101931516225} is an apocalyptic number.

It is an amenable number.

1101931516225 is a deficient number, since it is larger than the sum of its proper divisors (264647031659).

1101931516225 is an equidigital number, since it uses as much as digits as its factorization.

1101931516225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5918324 (or 5918319 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 37.

The spelling of 1101931516225 in words is "one trillion, one hundred one billion, nine hundred thirty-one million, five hundred sixteen thousand, two hundred twenty-five".