102121031242315 has 8 divisors (see below), whose sum is σ = 123325780405680. Its totient is φ = 81176463050592.

The previous prime is 102121031242313. The next prime is 102121031242327. The reversal of 102121031242315 is 513242130121201.

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

It is a cyclic number.

It is not a de Polignac number, because 102121031242315 - 2¹ = 102121031242313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102121031242313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65045242045 + ... + 65045243614.

It is an arithmetic number, because the mean of its divisors is an integer number (15415722550710).

Almost surely, 2^{102121031242315} is an apocalyptic number.

102121031242315 is a deficient number, since it is larger than the sum of its proper divisors (21204749163365).

102121031242315 is a wasteful number, since it uses less digits than its factorization.

102121031242315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130090485821.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 102121031242315 its reverse (513242130121201), we get a palindrome (615363161363516).

The spelling of 102121031242315 in words is "one hundred two trillion, one hundred twenty-one billion, thirty-one million, two hundred forty-two thousand, three hundred fifteen".