102121316 has 24 divisors (see below), whose sum is σ = 201250560. Its totient is φ = 44920800.

The previous prime is 102121303. The next prime is 102121339. The reversal of 102121316 is 613121201.

It is a junction number, because it is equal to n+sod(n) for n = 102121294 and 102121303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36071 + ... + 38798.

It is an arithmetic number, because the mean of its divisors is an integer number (8385440).

Almost surely, 2^102121316 is an apocalyptic number.

It is an amenable number.

102121316 is a deficient number, since it is larger than the sum of its proper divisors (99129244).

102121316 is a wasteful number, since it uses less digits than its factorization.

102121316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74915 (or 74913 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 102121316 is about 10105.5091905356. The cubic root of 102121316 is about 467.4180374293.

Adding to 102121316 its reverse (613121201), we get a palindrome (715242517).

The spelling of 102121316 in words is "one hundred two million, one hundred twenty-one thousand, three hundred sixteen".