123261525030 has 32 divisors (see below), whose sum is σ = 338088754944. Its totient is φ = 28174062816.

The previous prime is 123261525029. The next prime is 123261525097. The reversal of 123261525030 is 30525162321.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 293479612 + ... + 293480031.

It is an arithmetic number, because the mean of its divisors is an integer number (10565273592).

Almost surely, 2^123261525030 is an apocalyptic number.

123261525030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123261525030 is an abundant number, since it is smaller than the sum of its proper divisors (214827229914).

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

123261525030 is a wasteful number, since it uses less digits than its factorization.

123261525030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586959660.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 123261525030 its reverse (30525162321), we get a palindrome (153786687351).

The spelling of 123261525030 in words is "one hundred twenty-three billion, two hundred sixty-one million, five hundred twenty-five thousand, thirty".