1010213431 has 4 divisors (see below), whose sum is σ = 1012922152. Its totient is φ = 1007504712.

The previous prime is 1010213419. The next prime is 1010213453. The reversal of 1010213431 is 1343120101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010213431 is a prime.

It is a super-2 number, since 2×1010213431² = 2041062352345583522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010213401) 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, 1353801 + ... + 1354546.

It is an arithmetic number, because the mean of its divisors is an integer number (253230538).

Almost surely, 2^1010213431 is an apocalyptic number.

1010213431 is a deficient number, since it is larger than the sum of its proper divisors (2708721).

1010213431 is an equidigital number, since it uses as much as digits as its factorization.

1010213431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708720.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1010213431 is about 31783.8548794824. The cubic root of 1010213431 is about 1003.3929518577.

Adding to 1010213431 its reverse (1343120101), we get a palindrome (2353333532).

The spelling of 1010213431 in words is "one billion, ten million, two hundred thirteen thousand, four hundred thirty-one".