1012144402 has 32 divisors (see below), whose sum is σ = 1701777600. Its totient is φ = 448662528.

The previous prime is 1012144387. The next prime is 1012144429. The reversal of 1012144402 is 2044412101.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1012144402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111258 + ... + 120010.

It is an arithmetic number, because the mean of its divisors is an integer number (53180550).

Almost surely, 2^1012144402 is an apocalyptic number.

1012144402 is a deficient number, since it is larger than the sum of its proper divisors (689633198).

1012144402 is a wasteful number, since it uses less digits than its factorization.

1012144402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8970.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1012144402 is about 31814.2169792060. The cubic root of 1012144402 is about 1004.0318562878.

Adding to 1012144402 its reverse (2044412101), we get a palindrome (3056556503).

The spelling of 1012144402 in words is "one billion, twelve million, one hundred forty-four thousand, four hundred two".