1012343420 has 24 divisors (see below), whose sum is σ = 2319187248. Its totient is φ = 368124800.

The previous prime is 1012343393. The next prime is 1012343429. The reversal of 1012343420 is 243432101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1012343392 and 1012343401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012343429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2300561 + ... + 2301000.

It is an arithmetic number, because the mean of its divisors is an integer number (96632802).

Almost surely, 2^1012343420 is an apocalyptic number.

1012343420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012343420 is an abundant number, since it is smaller than the sum of its proper divisors (1306843828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012343420 is a wasteful number, since it uses less digits than its factorization.

1012343420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601581 (or 4601579 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1012343420 is about 31817.3446409344. The cubic root of 1012343420 is about 1004.0976595849.

Adding to 1012343420 its reverse (243432101), we get a palindrome (1255775521).

The spelling of 1012343420 in words is "one billion, twelve million, three hundred forty-three thousand, four hundred twenty".