1012143402 has 48 divisors (see below), whose sum is σ = 2248646400. Its totient is φ = 328874976.

The previous prime is 1012143401. The next prime is 1012143403. The reversal of 1012143402 is 2043412101.

It is an interprime number because it is at equal distance from previous prime (1012143401) and next prime (1012143403).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1012143401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220224 + ... + 224772.

It is an arithmetic number, because the mean of its divisors is an integer number (46846800).

Almost surely, 2^1012143402 is an apocalyptic number.

1012143402 is an abundant number, since it is smaller than the sum of its proper divisors (1236502998).

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

1012143402 is a wasteful number, since it uses less digits than its factorization.

1012143402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867 (or 4864 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1012143402 is about 31814.2012629580. The cubic root of 1012143402 is about 1004.0315256261.

Adding to 1012143402 its reverse (2043412101), we get a palindrome (3055555503).

The spelling of 1012143402 in words is "one billion, twelve million, one hundred forty-three thousand, four hundred two".