131121052 has 24 divisors (see below), whose sum is σ = 243008640. Its totient is φ = 61732080.

The previous prime is 131121031. The next prime is 131121113. The reversal of 131121052 is 250121131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7527 + ... + 17857.

It is an arithmetic number, because the mean of its divisors is an integer number (10125360).

Almost surely, 2^131121052 is an apocalyptic number.

It is an amenable number.

131121052 is a deficient number, since it is larger than the sum of its proper divisors (111887588).

131121052 is a wasteful number, since it uses less digits than its factorization.

131121052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10521 (or 10519 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 131121052 is about 11450.8101023465. The cubic root of 131121052 is about 508.0316955858.

Adding to 131121052 its reverse (250121131), we get a palindrome (381242183).

The spelling of 131121052 in words is "one hundred thirty-one million, one hundred twenty-one thousand, fifty-two".