1230155030 has 32 divisors (see below), whose sum is σ = 2387466144. Its totient is φ = 453666816.

The previous prime is 1230155029. The next prime is 1230155039. The reversal of 1230155030 is 305510321.

It is a junction number, because it is equal to n+sod(n) for n = 1230154993 and 1230155011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230155039) 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, 112694 + ... + 123126.

It is an arithmetic number, because the mean of its divisors is an integer number (74608317).

Almost surely, 2^1230155030 is an apocalyptic number.

1230155030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230155030 is a deficient number, since it is larger than the sum of its proper divisors (1157311114).

1230155030 is a wasteful number, since it uses less digits than its factorization.

1230155030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11360.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1230155030 is about 35073.5659721107. The cubic root of 1230155030 is about 1071.4862828512.

Adding to 1230155030 its reverse (305510321), we get a palindrome (1535665351).

The spelling of 1230155030 in words is "one billion, two hundred thirty million, one hundred fifty-five thousand, thirty".