1013232121 has 8 divisors (see below), whose sum is σ = 1105622784. Its totient is φ = 920887920.

The previous prime is 1013232119. The next prime is 1013232137. The reversal of 1013232121 is 1212323101.

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 1013232121 - 2¹ = 1013232119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013232095 and 1013232104.

It is not an unprimeable number, because it can be changed into a prime (1013239121) 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, 46776 + ... + 64918.

It is an arithmetic number, because the mean of its divisors is an integer number (138202848).

Almost surely, 2^1013232121 is an apocalyptic number.

1013232121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1013232121 is a deficient number, since it is larger than the sum of its proper divisors (92390663).

1013232121 is a wasteful number, since it uses less digits than its factorization.

1013232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23231.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1013232121 is about 31831.3072461688. The cubic root of 1013232121 is about 1004.3913944266.

Adding to 1013232121 its reverse (1212323101), we get a palindrome (2225555222).

The spelling of 1013232121 in words is "one billion, thirteen million, two hundred thirty-two thousand, one hundred twenty-one".