5021123400 has 144 divisors (see below), whose sum is σ = 17854632900. Its totient is φ = 1260195840.

The previous prime is 5021123347. The next prime is 5021123509. The reversal of 5021123400 is 43211205.

5021123400 is a `hidden beast` number, since 50 + 211 + 2 + 3 + 400 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 4235666724 + 785456676 = 65082^2 + 28026^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51445 + ... + 112644.

Almost surely, 2^5021123400 is an apocalyptic number.

5021123400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5021123400 is an abundant number, since it is smaller than the sum of its proper divisors (12833509500).

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

5021123400 is a wasteful number, since it uses less digits than its factorization.

5021123400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164128 (or 164116 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 5021123400 is about 70859.8856900009. The cubic root of 5021123400 is about 1712.3805972835.

Adding to 5021123400 its reverse (43211205), we get a palindrome (5064334605).

The spelling of 5021123400 in words is "five billion, twenty-one million, one hundred twenty-three thousand, four hundred".