2143023402 has 16 divisors (see below), whose sum is σ = 4615742880. Its totient is φ = 659391792.

The previous prime is 2143023401. The next prime is 2143023409. The reversal of 2143023402 is 2043203412.

It is not an unprimeable number, because it can be changed into a prime (2143023401) 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, 13737252 + ... + 13737407.

It is an arithmetic number, because the mean of its divisors is an integer number (288483930).

Almost surely, 2^2143023402 is an apocalyptic number.

2143023402 is an abundant number, since it is smaller than the sum of its proper divisors (2472719478).

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

2143023402 is a wasteful number, since it uses less digits than its factorization.

2143023402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27474677.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2143023402 is about 46292.8007577852. The cubic root of 2143023402 is about 1289.2653313323.

Adding to 2143023402 its reverse (2043203412), we get a palindrome (4186226814).

The spelling of 2143023402 in words is "two billion, one hundred forty-three million, twenty-three thousand, four hundred two".