1020212431 has 8 divisors (see below), whose sum is σ = 1206162720. Its totient is φ = 844313568.

The previous prime is 1020212393. The next prime is 1020212441. The reversal of 1020212431 is 1342120201.

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

It is not a de Polignac number, because 1020212431 - 2²¹ = 1018115279 is a prime.

It is a super-2 number, since 2×1020212431² = 2081666808733859522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020212441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2512636 + ... + 2513041.

It is an arithmetic number, because the mean of its divisors is an integer number (150770340).

Almost surely, 2^1020212431 is an apocalyptic number.

1020212431 is a deficient number, since it is larger than the sum of its proper divisors (185950289).

1020212431 is an equidigital number, since it uses as much as digits as its factorization.

1020212431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025713.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1020212431 is about 31940.7644085110. The cubic root of 1020212431 is about 1006.6925863658.

Adding to 1020212431 its reverse (1342120201), we get a palindrome (2362332632).

The spelling of 1020212431 in words is "one billion, twenty million, two hundred twelve thousand, four hundred thirty-one".