123020225315 has 64 divisors (see below), whose sum is σ = 170284584960. Its totient is φ = 84625067520.

The previous prime is 123020225311. The next prime is 123020225371. The reversal of 123020225315 is 513522020321.

It is a happy number.

It is not a de Polignac number, because 123020225315 - 2² = 123020225311 is a prime.

It is a super-3 number, since 3×123020225315³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (123020225311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20273912 + ... + 20279978.

It is an arithmetic number, because the mean of its divisors is an integer number (2660696640).

Almost surely, 2^123020225315 is an apocalyptic number.

123020225315 is a deficient number, since it is larger than the sum of its proper divisors (47264359645).

123020225315 is a wasteful number, since it uses less digits than its factorization.

123020225315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6492.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 123020225315 its reverse (513522020321), we get a palindrome (636542245636).

The spelling of 123020225315 in words is "one hundred twenty-three billion, twenty million, two hundred twenty-five thousand, three hundred fifteen".