210542343100 has 36 divisors (see below), whose sum is σ = 468020232288. Its totient is φ = 82162864000.

The previous prime is 210542343083. The next prime is 210542343101. The reversal of 210542343100 is 1343245012.

It is a super-2 number, since 2×210542343100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210542343101) 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, 25671796 + ... + 25679995.

It is an arithmetic number, because the mean of its divisors is an integer number (13000562008).

Almost surely, 2^210542343100 is an apocalyptic number.

210542343100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210542343100 is an abundant number, since it is smaller than the sum of its proper divisors (257477889188).

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

210542343100 is a wasteful number, since it uses less digits than its factorization.

210542343100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51351846 (or 51351839 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 210542343100 its reverse (1343245012), we get a palindrome (211885588112).

The spelling of 210542343100 in words is "two hundred ten billion, five hundred forty-two million, three hundred forty-three thousand, one hundred".