105121402525 has 12 divisors (see below), whose sum is σ = 130460391072. Its totient is φ = 84026249840.

The previous prime is 105121402501. The next prime is 105121402553. The reversal of 105121402525 is 525204121501.

It is not a de Polignac number, because 105121402525 - 2⁹ = 105121402013 is a prime.

It is a super-2 number, since 2×105121402525² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105121402493 and 105121402502.

It is a congruent 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, 1741537 + ... + 1800886.

It is an arithmetic number, because the mean of its divisors is an integer number (10871699256).

Almost surely, 2^105121402525 is an apocalyptic number.

It is an amenable number.

105121402525 is a deficient number, since it is larger than the sum of its proper divisors (25338988547).

105121402525 is a wasteful number, since it uses less digits than its factorization.

105121402525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543620 (or 3543615 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 105121402525 in words is "one hundred five billion, one hundred twenty-one million, four hundred two thousand, five hundred twenty-five".