123205453030 has 32 divisors (see below), whose sum is σ = 256161929760. Its totient is φ = 42166571520.

The previous prime is 123205453001. The next prime is 123205453057. The reversal of 123205453030 is 30354502321.

It is a self number, because there is not a number n which added to its sum of digits gives 123205453030.

It is a congruent number.

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, 32940765 + ... + 32944504.

It is an arithmetic number, because the mean of its divisors is an integer number (8005060305).

Almost surely, 2^123205453030 is an apocalyptic number.

123205453030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123205453030 is an abundant number, since it is smaller than the sum of its proper divisors (132956476730).

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

123205453030 is a wasteful number, since it uses less digits than its factorization.

123205453030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65885304.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 123205453030 its reverse (30354502321), we get a palindrome (153559955351).

The spelling of 123205453030 in words is "one hundred twenty-three billion, two hundred five million, four hundred fifty-three thousand, thirty".