1021141431 has 16 divisors (see below), whose sum is σ = 1601791200. Its totient is φ = 640715904.

The previous prime is 1021141427. The next prime is 1021141483. The reversal of 1021141431 is 1341411201.

1021141431 is a `hidden beast` number, since 10 + 211 + 414 + 31 = 666.

It is not a de Polignac number, because 1021141431 - 2² = 1021141427 is a prime.

It is a super-2 number, since 2×1021141431² = 2085459644209455522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021141631) 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 15 ways as a sum of consecutive naturals, for example, 1111896 + ... + 1112813.

It is an arithmetic number, because the mean of its divisors is an integer number (100111950).

Almost surely, 2^1021141431 is an apocalyptic number.

1021141431 is a deficient number, since it is larger than the sum of its proper divisors (580649769).

1021141431 is a wasteful number, since it uses less digits than its factorization.

1021141431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224735 (or 2224729 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1021141431 is about 31955.3036443092. The cubic root of 1021141431 is about 1006.9980566319.

Adding to 1021141431 its reverse (1341411201), we get a palindrome (2362552632).

The spelling of 1021141431 in words is "one billion, twenty-one million, one hundred forty-one thousand, four hundred thirty-one".