131121010 has 64 divisors (see below), whose sum is σ = 253808640. Its totient is φ = 48692160.

The previous prime is 131120989. The next prime is 131121031. The reversal of 131121010 is 10121131.

It is an interprime number because it is at equal distance from previous prime (131120989) and next prime (131121031).

It is a Harshad number since it is a multiple of its sum of digits (10).

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 31 ways as a sum of consecutive naturals, for example, 1225377 + ... + 1225483.

It is an arithmetic number, because the mean of its divisors is an integer number (3965760).

Almost surely, 2^131121010 is an apocalyptic number.

131121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131121010 is a deficient number, since it is larger than the sum of its proper divisors (122687630).

131121010 is a wasteful number, since it uses less digits than its factorization.

131121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 131121010 is about 11450.8082684149. The cubic root of 131121010 is about 508.0316413424.

Adding to 131121010 its reverse (10121131), we get a palindrome (141242141).

The spelling of 131121010 in words is "one hundred thirty-one million, one hundred twenty-one thousand, ten".