102031553242 has 8 divisors (see below), whose sum is σ = 153052789716. Its totient is φ = 51013956672.

The previous prime is 102031553233. The next prime is 102031553249. The reversal of 102031553242 is 242355130201.

It can be written as a sum of positive squares in 2 ways, for example, as 96310294921 + 5721258321 = 310339^2 + 75639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102031553242.

It is not an unprimeable number, because it can be changed into a prime (102031553249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838783 + ... + 952690.

Almost surely, 2^102031553242 is an apocalyptic number.

102031553242 is a deficient number, since it is larger than the sum of its proper divisors (51021236474).

102031553242 is a wasteful number, since it uses less digits than its factorization.

102031553242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819952.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 102031553242 its reverse (242355130201), we get a palindrome (344386683443).

The spelling of 102031553242 in words is "one hundred two billion, thirty-one million, five hundred fifty-three thousand, two hundred forty-two".