11425251021 has 8 divisors (see below), whose sum is σ = 15390716544. Its totient is φ = 7538309760.

The previous prime is 11425251007. The next prime is 11425251031. The reversal of 11425251021 is 12015252411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11425251021 - 2¹⁴ = 11425234637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11425250982 and 11425251000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11425251031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19630725 + ... + 19631306.

It is an arithmetic number, because the mean of its divisors is an integer number (1923839568).

Almost surely, 2^11425251021 is an apocalyptic number.

It is an amenable number.

11425251021 is a deficient number, since it is larger than the sum of its proper divisors (3965465523).

11425251021 is an equidigital number, since it uses as much as digits as its factorization.

11425251021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39262131.

The product of its (nonzero) digits is 800, while the sum is 24.

The spelling of 11425251021 in words is "eleven billion, four hundred twenty-five million, two hundred fifty-one thousand, twenty-one".