131121332 has 24 divisors (see below), whose sum is σ = 232552320. Its totient is φ = 64683360.

The previous prime is 131121307. The next prime is 131121379. The reversal of 131121332 is 233121131.

It is a self number, because there is not a number n which added to its sum of digits gives 131121332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135113 + ... + 136079.

It is an arithmetic number, because the mean of its divisors is an integer number (9689680).

Almost surely, 2^131121332 is an apocalyptic number.

It is an amenable number.

131121332 is a deficient number, since it is larger than the sum of its proper divisors (101430988).

131121332 is a wasteful number, since it uses less digits than its factorization.

131121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1389 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 131121332 is about 11450.8223285492. The cubic root of 131121332 is about 508.0320572078.

Adding to 131121332 its reverse (233121131), we get a palindrome (364242463).

The spelling of 131121332 in words is "one hundred thirty-one million, one hundred twenty-one thousand, three hundred thirty-two".