102021323134530 has 64 divisors (see below), whose sum is σ = 264703973592960. Its totient is φ = 25077218540544.

The previous prime is 102021323134517. The next prime is 102021323134553. The reversal of 102021323134530 is 35431323120201.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2418692119 + ... + 2418734298.

It is an arithmetic number, because the mean of its divisors is an integer number (4135999587390).

Almost surely, 2^{102021323134530} is an apocalyptic number.

102021323134530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021323134530 is an abundant number, since it is smaller than the sum of its proper divisors (162682650458430).

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

102021323134530 is a wasteful number, since it uses less digits than its factorization.

102021323134530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837426483.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 102021323134530 its reverse (35431323120201), we get a palindrome (137452646254731).

The spelling of 102021323134530 in words is "one hundred two trillion, twenty-one billion, three hundred twenty-three million, one hundred thirty-four thousand, five hundred thirty".