3100121001 has 6 divisors (see below), whose sum is σ = 4477952570. Its totient is φ = 2066747328.

The previous prime is 3100120963. The next prime is 3100121009. The reversal of 3100121001 is 1001210013.

It can be written as a sum of positive squares in only one way, i.e., 1923699600 + 1176421401 = 43860^2 + 34299^2 .

It is not a de Polignac number, because 3100121001 - 2⁶ = 3100120937 is a prime.

It is a super-2 number, since 2×3100121001² = 19221500441682484002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 344457889 = 3100121001 / (3 + 1 + 0 + 0 + 1 + 2 + 1 + 0 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3100121009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 172228936 + ... + 172228953.

Almost surely, 2^3100121001 is an apocalyptic number.

It is an amenable number.

3100121001 is a deficient number, since it is larger than the sum of its proper divisors (1377831569).

3100121001 is a wasteful number, since it uses less digits than its factorization.

3100121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344457895 (or 344457892 counting only the distinct ones).

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

The square root of 3100121001 is about 55678.7302387545. The cubic root of 3100121001 is about 1458.1187067117.

Adding to 3100121001 its reverse (1001210013), we get a palindrome (4101331014).

It can be divided in two parts, 3 and 100121001, that multiplied together give a palindrome (300363003).

The spelling of 3100121001 in words is "three billion, one hundred million, one hundred twenty-one thousand, one".