123530451130 has 32 divisors (see below), whose sum is σ = 223390681488. Its totient is φ = 49182144000.

The previous prime is 123530451103. The next prime is 123530451157. The reversal of 123530451130 is 31154035321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123530451103) and next prime (123530451157).

It can be written as a sum of positive squares in 8 ways, for example, as 391921209 + 123138529921 = 19797^2 + 350911^2 .

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, 7683300 + ... + 7699360.

Almost surely, 2^123530451130 is an apocalyptic number.

123530451130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123530451130 is a deficient number, since it is larger than the sum of its proper divisors (99860230358).

123530451130 is a wasteful number, since it uses less digits than its factorization.

123530451130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19602.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 123530451130 its reverse (31154035321), we get a palindrome (154684486451).

The spelling of 123530451130 in words is "one hundred twenty-three billion, five hundred thirty million, four hundred fifty-one thousand, one hundred thirty".