231142202102 has 48 divisors (see below), whose sum is σ = 424674054000. Its totient is φ = 93819104064.

The previous prime is 231142202087. The next prime is 231142202117. The reversal of 231142202102 is 201202241132.

It is an interprime number because it is at equal distance from previous prime (231142202087) and next prime (231142202117).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6889424 + ... + 6922892.

It is an arithmetic number, because the mean of its divisors is an integer number (8847376125).

Almost surely, 2^231142202102 is an apocalyptic number.

231142202102 is a deficient number, since it is larger than the sum of its proper divisors (193531851898).

231142202102 is a wasteful number, since it uses less digits than its factorization.

231142202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37213 (or 37206 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 231142202102 its reverse (201202241132), we get a palindrome (432344443234).

The spelling of 231142202102 in words is "two hundred thirty-one billion, one hundred forty-two million, two hundred two thousand, one hundred two".