1201301121 has 16 divisors (see below), whose sum is σ = 1629270720. Its totient is φ = 787120320.

The previous prime is 1201301113. The next prime is 1201301147. The reversal of 1201301121 is 1211031021.

It is not a de Polignac number, because 1201301121 - 2³ = 1201301113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201301097 and 1201301106.

It is not an unprimeable number, because it can be changed into a prime (1201305121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421126 + ... + 423968.

It is an arithmetic number, because the mean of its divisors is an integer number (101829420).

Almost surely, 2^1201301121 is an apocalyptic number.

It is an amenable number.

1201301121 is a deficient number, since it is larger than the sum of its proper divisors (427969599).

1201301121 is a wasteful number, since it uses less digits than its factorization.

1201301121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5216.

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

The square root of 1201301121 is about 34659.7911274722. The cubic root of 1201301121 is about 1063.0424991718.

Adding to 1201301121 its reverse (1211031021), we get a palindrome (2412332142).

The spelling of 1201301121 in words is "one billion, two hundred one million, three hundred one thousand, one hundred twenty-one".