11912631025 has 27 divisors (see below), whose sum is σ = 15008845579. Its totient is φ = 9379484720.

The previous prime is 11912630999. The next prime is 11912631041. The reversal of 11912631025 is 52013621911.

The square root of 11912631025 is 109145.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4288547169 + 7624083856 = 65487^2 + 87316^2 .

It is not a de Polignac number, because 11912631025 - 2¹⁷ = 11912499953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 45295044 + ... + 45295306.

Almost surely, 2^11912631025 is an apocalyptic number.

11912631025 is the 109145-th square number.

11912631025 is the 54573-rd centered octagonal number.

It is an amenable number.

11912631025 is a deficient number, since it is larger than the sum of its proper divisors (3096214554).

11912631025 is an frugal number, since it uses more digits than its factorization.

11912631025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 11912631025 in words is "eleven billion, nine hundred twelve million, six hundred thirty-one thousand, twenty-five".