1121015425 has 24 divisors (see below), whose sum is σ = 1403910144. Its totient is φ = 887928960.

The previous prime is 1121015419. The next prime is 1121015429. The reversal of 1121015425 is 5245101211.

It is not a de Polignac number, because 1121015425 - 2⁹ = 1121014913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121015396 and 1121015405.

It is not an unprimeable number, because it can be changed into a prime (1121015429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1298544 + ... + 1299406.

It is an arithmetic number, because the mean of its divisors is an integer number (58496256).

Almost surely, 2^1121015425 is an apocalyptic number.

It is an amenable number.

1121015425 is a deficient number, since it is larger than the sum of its proper divisors (282894719).

1121015425 is a wasteful number, since it uses less digits than its factorization.

1121015425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1121015425 is about 33481.5684369774. The cubic root of 1121015425 is about 1038.8125701141.

Adding to 1121015425 its reverse (5245101211), we get a palindrome (6366116636).

The spelling of 1121015425 in words is "one billion, one hundred twenty-one million, fifteen thousand, four hundred twenty-five".