102430210442 has 24 divisors (see below), whose sum is σ = 183560819364. Its totient is φ = 42712209792.

The previous prime is 102430210423. The next prime is 102430210451. The reversal of 102430210442 is 244012034201.

It can be written as a sum of positive squares in 2 ways, for example, as 85381424401 + 17048786041 = 292201^2 + 130571^2 .

It is a super-2 number, since 2×102430210442² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14120783 + ... + 14128034.

Almost surely, 2^102430210442 is an apocalyptic number.

102430210442 is a deficient number, since it is larger than the sum of its proper divisors (81130608922).

102430210442 is a wasteful number, since it uses less digits than its factorization.

102430210442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28248870 (or 28248863 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 102430210442 its reverse (244012034201), we get a palindrome (346442244643).

The spelling of 102430210442 in words is "one hundred two billion, four hundred thirty million, two hundred ten thousand, four hundred forty-two".