120001131 has 12 divisors (see below), whose sum is σ = 182458120. Its totient is φ = 75790080.

The previous prime is 120001121. The next prime is 120001153. The reversal of 120001131 is 131100021.

It is not a de Polignac number, because 120001131 - 2⁵ = 120001099 is a prime.

It is a super-2 number, since 2×120001131² = 28800542882558322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120001111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350710 + ... + 351051.

Almost surely, 2^120001131 is an apocalyptic number.

120001131 is a deficient number, since it is larger than the sum of its proper divisors (62456989).

120001131 is a wasteful number, since it uses less digits than its factorization.

120001131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701786 (or 701783 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 120001131 is about 10954.5027728327. The cubic root of 120001131 is about 493.2439644645.

Adding to 120001131 its reverse (131100021), we get a palindrome (251101152).

It can be divided in two parts, 12000 and 1131, that added together give a palindrome (13131).

The spelling of 120001131 in words is "one hundred twenty million, one thousand, one hundred thirty-one".