102133231213021 has 4 divisors (see below), whose sum is σ = 102210663535200. Its totient is φ = 102055798890844.

The previous prime is 102133231213019. The next prime is 102133231213081. The reversal of 102133231213021 is 120312132331201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102133231213021 - 2¹ = 102133231213019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102133231213081) 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, 38716159111 + ... + 38716161748.

It is an arithmetic number, because the mean of its divisors is an integer number (25552665883800).

Almost surely, 2^{102133231213021} is an apocalyptic number.

It is an amenable number.

102133231213021 is a deficient number, since it is larger than the sum of its proper divisors (77432322179).

102133231213021 is an equidigital number, since it uses as much as digits as its factorization.

102133231213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77432322178.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 102133231213021 its reverse (120312132331201), we get a palindrome (222445363544222).

The spelling of 102133231213021 in words is "one hundred two trillion, one hundred thirty-three billion, two hundred thirty-one million, two hundred thirteen thousand, twenty-one".