1021201433 has 4 divisors (see below), whose sum is σ = 1167087360. Its totient is φ = 875315508.

The previous prime is 1021201429. The next prime is 1021201463. The reversal of 1021201433 is 3341021201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3341021201 = 7 ⋅477288743.

It is a cyclic number.

It is not a de Polignac number, because 1021201433 - 2² = 1021201429 is a prime.

It is a super-2 number, since 2×1021201433² = 2085704733522506978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021201463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72942953 + ... + 72942966.

It is an arithmetic number, because the mean of its divisors is an integer number (291771840).

Almost surely, 2^1021201433 is an apocalyptic number.

It is an amenable number.

1021201433 is a deficient number, since it is larger than the sum of its proper divisors (145885927).

1021201433 is an equidigital number, since it uses as much as digits as its factorization.

1021201433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145885926.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1021201433 is about 31956.2424731069. The cubic root of 1021201433 is about 1007.0177798920.

Adding to 1021201433 its reverse (3341021201), we get a palindrome (4362222634).

The spelling of 1021201433 in words is "one billion, twenty-one million, two hundred one thousand, four hundred thirty-three".