1021012543350 has 72 divisors (see below), whose sum is σ = 2743241465952. Its totient is φ = 272257992000.

The previous prime is 1021012543337. The next prime is 1021012543351. The reversal of 1021012543350 is 533452101201.

1021012543350 is a `hidden beast` number, since 1 + 0 + 210 + 12 + 5 + 433 + 5 + 0 = 666.

It is a super-2 number, since 2×1021012543350² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021012543351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15543075 + ... + 15608625.

It is an arithmetic number, because the mean of its divisors is an integer number (38100575916).

Almost surely, 2^{1021012543350} is an apocalyptic number.

1021012543350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021012543350 is an abundant number, since it is smaller than the sum of its proper divisors (1722228922602).

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

1021012543350 is a wasteful number, since it uses less digits than its factorization.

1021012543350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100182 (or 100174 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 1021012543350 its reverse (533452101201), we get a palindrome (1554464644551).

The spelling of 1021012543350 in words is "one trillion, twenty-one billion, twelve million, five hundred forty-three thousand, three hundred fifty".