1021214131 has 16 divisors (see below), whose sum is σ = 1181649600. Its totient is φ = 864460800.

The previous prime is 1021214113. The next prime is 1021214137. The reversal of 1021214131 is 1314121201.

It is not a de Polignac number, because 1021214131 - 2⁷ = 1021214003 is a prime.

It is a super-2 number, since 2×1021214131² = 2085756602708170322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021214137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315835 + ... + 319051.

It is an arithmetic number, because the mean of its divisors is an integer number (73853100).

Almost surely, 2^1021214131 is an apocalyptic number.

1021214131 is a deficient number, since it is larger than the sum of its proper divisors (160435469).

1021214131 is a wasteful number, since it uses less digits than its factorization.

1021214131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3774.

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

The square root of 1021214131 is about 31956.4411504160. The cubic root of 1021214131 is about 1007.0219537530.

Adding to 1021214131 its reverse (1314121201), we get a palindrome (2335335332).

The spelling of 1021214131 in words is "one billion, twenty-one million, two hundred fourteen thousand, one hundred thirty-one".