1230785130 has 32 divisors (see below), whose sum is σ = 3022582464. Its totient is φ = 320576256.

The previous prime is 1230785119. The next prime is 1230785137. The reversal of 1230785130 is 315870321.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1230785137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475759 + ... + 478338.

It is an arithmetic number, because the mean of its divisors is an integer number (94455702).

Almost surely, 2^1230785130 is an apocalyptic number.

1230785130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230785130 is an abundant number, since it is smaller than the sum of its proper divisors (1791797334).

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

1230785130 is a wasteful number, since it uses less digits than its factorization.

1230785130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954150.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1230785130 is about 35082.5473704519. The cubic root of 1230785130 is about 1071.6691942867.

The spelling of 1230785130 in words is "one billion, two hundred thirty million, seven hundred eighty-five thousand, one hundred thirty".