123020313130 has 64 divisors (see below), whose sum is σ = 262048566528. Its totient is φ = 40992053760.

The previous prime is 123020313121. The next prime is 123020313139. The reversal of 123020313130 is 31313020321.

It is an interprime number because it is at equal distance from previous prime (123020313121) and next prime (123020313139).

It is a junction number, because it is equal to n+sod(n) for n = 123020313098 and 123020313107.

It is not an unprimeable number, because it can be changed into a prime (123020313139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118062 + ... + 509881.

It is an arithmetic number, because the mean of its divisors is an integer number (4094508852).

Almost surely, 2^123020313130 is an apocalyptic number.

123020313130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123020313130 is an abundant number, since it is smaller than the sum of its proper divisors (139028253398).

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

123020313130 is a wasteful number, since it uses less digits than its factorization.

123020313130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628111.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 123020313130 its reverse (31313020321), we get a palindrome (154333333451).

The spelling of 123020313130 in words is "one hundred twenty-three billion, twenty million, three hundred thirteen thousand, one hundred thirty".