1201100131 has 8 divisors (see below), whose sum is σ = 1497475584. Its totient is φ = 935922120.

The previous prime is 1201100107. The next prime is 1201100137. The reversal of 1201100131 is 1310011021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201100131 - 2¹⁵ = 1201067363 is a prime.

It is a super-2 number, since 2×1201100131² = 2885283049376434322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201100137) by changing a digit.

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, 7799275 + ... + 7799428.

It is an arithmetic number, because the mean of its divisors is an integer number (187184448).

Almost surely, 2^1201100131 is an apocalyptic number.

1201100131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201100131 is a deficient number, since it is larger than the sum of its proper divisors (296375453).

1201100131 is a wasteful number, since it uses less digits than its factorization.

1201100131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15598721.

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

The square root of 1201100131 is about 34656.8915368935. The cubic root of 1201100131 is about 1062.9832098937.

Adding to 1201100131 its reverse (1310011021), we get a palindrome (2511111152).

The spelling of 1201100131 in words is "one billion, two hundred one million, one hundred thousand, one hundred thirty-one".