231221131123102 has 8 divisors (see below), whose sum is σ = 354897550096056. Its totient is φ = 112921947757752.

The previous prime is 231221131123079. The next prime is 231221131123117. The reversal of 231221131123102 is 201321131122132.

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

It is a super-2 number, since 2×231221131123102² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344308901793 + ... + 1344308901964.

It is an arithmetic number, because the mean of its divisors is an integer number (44362193762007).

Almost surely, 2^{231221131123102} is an apocalyptic number.

231221131123102 is a deficient number, since it is larger than the sum of its proper divisors (123676418972954).

231221131123102 is a wasteful number, since it uses less digits than its factorization.

231221131123102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688617803802.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 231221131123102 its reverse (201321131122132), we get a palindrome (432542262245234).

The spelling of 231221131123102 in words is "two hundred thirty-one trillion, two hundred twenty-one billion, one hundred thirty-one million, one hundred twenty-three thousand, one hundred two".