102132213121 has 4 divisors (see below), whose sum is σ = 104507380912. Its totient is φ = 99757045332.

The previous prime is 102132213119. The next prime is 102132213143. The reversal of 102132213121 is 121312231201.

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 102132213121 - 2¹ = 102132213119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102132213181) 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, 1187583831 + ... + 1187583916.

It is an arithmetic number, because the mean of its divisors is an integer number (26126845228).

Almost surely, 2^102132213121 is an apocalyptic number.

It is an amenable number.

102132213121 is a deficient number, since it is larger than the sum of its proper divisors (2375167791).

102132213121 is an equidigital number, since it uses as much as digits as its factorization.

102132213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375167790.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102132213121 its reverse (121312231201), we get a palindrome (223444444322).

The spelling of 102132213121 in words is "one hundred two billion, one hundred thirty-two million, two hundred thirteen thousand, one hundred twenty-one".