100421340552 has 48 divisors (see below), whose sum is σ = 292895579340. Its totient is φ = 30898873728.

The previous prime is 100421340499. The next prime is 100421340553. The reversal of 100421340552 is 255043124001.

100421340552 is a `hidden beast` number, since 100 + 4 + 2 + 1 + 3 + 4 + 0 + 552 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 99789019236 + 632321316 = 315894^2 + 25146^2 .

It is not an unprimeable number, because it can be changed into a prime (100421340553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53642943 + ... + 53644814.

Almost surely, 2^100421340552 is an apocalyptic number.

100421340552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100421340552 is an abundant number, since it is smaller than the sum of its proper divisors (192474238788).

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

100421340552 is a wasteful number, since it uses less digits than its factorization.

100421340552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107287782 (or 107287775 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 100421340552 its reverse (255043124001), we get a palindrome (355464464553).

The spelling of 100421340552 in words is "one hundred billion, four hundred twenty-one million, three hundred forty thousand, five hundred fifty-two".