3121101121 has 8 divisors (see below), whose sum is σ = 3247817760. Its totient is φ = 2996845152.

The previous prime is 3121101089. The next prime is 3121101143. The reversal of 3121101121 is 1211011213.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3121101121 - 2⁵ = 3121101089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121108121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612580 + ... + 617653.

It is an arithmetic number, because the mean of its divisors is an integer number (405977220).

Almost surely, 2^3121101121 is an apocalyptic number.

It is an amenable number.

3121101121 is a deficient number, since it is larger than the sum of its proper divisors (126716639).

3121101121 is a wasteful number, since it uses less digits than its factorization.

3121101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230335.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 3121101121 is about 55866.8159196495. The cubic root of 3121101121 is about 1461.4005951948.

Adding to 3121101121 its reverse (1211011213), we get a palindrome (4332112334).

It can be divided in two parts, 3 and 121101121, that multiplied together give a palindrome (363303363).

The spelling of 3121101121 in words is "three billion, one hundred twenty-one million, one hundred one thousand, one hundred twenty-one".