1201252130 has 32 divisors (see below), whose sum is σ = 2465560944. Its totient is φ = 417447936.

The previous prime is 1201252127. The next prime is 1201252177. The reversal of 1201252130 is 312521021.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 235223569 + 966028561 = 15337^2 + 31081^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 1201252099 and 1201252108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269567 + ... + 273986.

Almost surely, 2^1201252130 is an apocalyptic number.

1201252130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201252130 is an abundant number, since it is smaller than the sum of its proper divisors (1264308814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201252130 is a wasteful number, since it uses less digits than its factorization.

1201252130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543590.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1201252130 is about 34659.0843791350. The cubic root of 1201252130 is about 1063.0280481120.

Adding to 1201252130 its reverse (312521021), we get a palindrome (1513773151).

The spelling of 1201252130 in words is "one billion, two hundred one million, two hundred fifty-two thousand, one hundred thirty".