1011432121 has 8 divisors (see below), whose sum is σ = 1156711680. Its totient is φ = 866349888.

The previous prime is 1011432109. The next prime is 1011432131. The reversal of 1011432121 is 1212341101.

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 1011432121 - 2¹⁵ = 1011399353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011432095 and 1011432104.

It is not an unprimeable number, because it can be changed into a prime (1011432131) 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, 38176 + ... + 58993.

It is an arithmetic number, because the mean of its divisors is an integer number (144588960).

Almost surely, 2^1011432121 is an apocalyptic number.

It is an amenable number.

1011432121 is a deficient number, since it is larger than the sum of its proper divisors (145279559).

1011432121 is an equidigital number, since it uses as much as digits as its factorization.

1011432121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98663.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1011432121 is about 31803.0206269782. The cubic root of 1011432121 is about 1003.7962770436.

Adding to 1011432121 its reverse (1212341101), we get a palindrome (2223773222).

The spelling of 1011432121 in words is "one billion, eleven million, four hundred thirty-two thousand, one hundred twenty-one".