10021423554 has 12 divisors (see below), whose sum is σ = 21713084406. Its totient is φ = 3340474512.

The previous prime is 10021423553. The next prime is 10021423567. The reversal of 10021423554 is 45532412001.

10021423554 is a `hidden beast` number, since 100 + 2 + 1 + 4 + 2 + 3 + 554 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9092576025 + 928847529 = 95355^2 + 30477^2 .

It is not an unprimeable number, because it can be changed into a prime (10021423553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278372859 + ... + 278372894.

Almost surely, 2^10021423554 is an apocalyptic number.

10021423554 is an abundant number, since it is smaller than the sum of its proper divisors (11691660852).

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

10021423554 is a wasteful number, since it uses less digits than its factorization.

10021423554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556745761 (or 556745758 counting only the distinct ones).

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

Adding to 10021423554 its reverse (45532412001), we get a palindrome (55553835555).

The spelling of 10021423554 in words is "ten billion, twenty-one million, four hundred twenty-three thousand, five hundred fifty-four".