1232021025 has 36 divisors (see below), whose sum is σ = 2336498892. Its totient is φ = 618424320.

The previous prime is 1232021023. The next prime is 1232021029. The reversal of 1232021025 is 5201202321.

It can be written as a sum of positive squares in 6 ways, for example, as 29942784 + 1202078241 = 5472^2 + 34671^2 .

It is not a de Polignac number, because 1232021025 - 2¹ = 1232021023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1232020989 and 1232021007.

It is not an unprimeable number, because it can be changed into a prime (1232021023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 157224 + ... + 164873.

It is an arithmetic number, because the mean of its divisors is an integer number (64902747).

Almost surely, 2^1232021025 is an apocalyptic number.

1232021025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1232021025 is a deficient number, since it is larger than the sum of its proper divisors (1104477867).

1232021025 is a wasteful number, since it uses less digits than its factorization.

1232021025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322130 (or 322122 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1232021025 is about 35100.1570509307. The cubic root of 1232021025 is about 1072.0277804419.

Adding to 1232021025 its reverse (5201202321), we get a palindrome (6433223346).

The spelling of 1232021025 in words is "one billion, two hundred thirty-two million, twenty-one thousand, twenty-five".