102121023202031 has 8 divisors (see below), whose sum is σ = 102796080375120. Its totient is φ = 101446277482368.

The previous prime is 102121023201973. The next prime is 102121023202057. The reversal of 102121023202031 is 130202320121201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102121023202031 is a prime.

It is a super-2 number, since 2×102121023202031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102121023201994 and 102121023202012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121023202631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77205401 + ... + 78516978.

It is an arithmetic number, because the mean of its divisors is an integer number (12849510046890).

Almost surely, 2^{102121023202031} is an apocalyptic number.

102121023202031 is a deficient number, since it is larger than the sum of its proper divisors (675057173089).

102121023202031 is a wasteful number, since it uses less digits than its factorization.

102121023202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155726713.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 102121023202031 its reverse (130202320121201), we get a palindrome (232323343323232).

The spelling of 102121023202031 in words is "one hundred two trillion, one hundred twenty-one billion, twenty-three million, two hundred two thousand, thirty-one".