1061121125 has 8 divisors (see below), whose sum is σ = 1324279320. Its totient is φ = 848896800.

The previous prime is 1061121097. The next prime is 1061121137. The reversal of 1061121125 is 5211211601.

It can be written as a sum of positive squares in 4 ways, for example, as 9351364 + 1051769761 = 3058^2 + 32431^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1061121125 is a prime.

It is a super-2 number, since 2×1061121125² = 2251956083842531250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1061121097 and 1061121106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4244360 + ... + 4244609.

It is an arithmetic number, because the mean of its divisors is an integer number (165534915).

Almost surely, 2^1061121125 is an apocalyptic number.

It is an amenable number.

1061121125 is a deficient number, since it is larger than the sum of its proper divisors (263158195).

1061121125 is an frugal number, since it uses more digits than its factorization.

1061121125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8488984 (or 8488974 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 1061121125 is about 32574.8541823290. The cubic root of 1061121125 is about 1019.9721653945.

Adding to 1061121125 its reverse (5211211601), we get a palindrome (6272332726).

The spelling of 1061121125 in words is "one billion, sixty-one million, one hundred twenty-one thousand, one hundred twenty-five".