130021402 has 24 divisors (see below), whose sum is σ = 231163956. Its totient is φ = 54669888.

The previous prime is 130021399. The next prime is 130021421. The reversal of 130021402 is 204120031.

It can be written as a sum of positive squares in 2 ways, for example, as 128119761 + 1901641 = 11319^2 + 1379^2 .

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, 7323 + ... + 17710.

Almost surely, 2^130021402 is an apocalyptic number.

130021402 is a deficient number, since it is larger than the sum of its proper divisors (101142554).

130021402 is a wasteful number, since it uses less digits than its factorization.

130021402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25102 (or 25095 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 130021402 is about 11402.6927521529. The cubic root of 130021402 is about 506.6074999200.

Adding to 130021402 its reverse (204120031), we get a palindrome (334141433).

The spelling of 130021402 in words is "one hundred thirty million, twenty-one thousand, four hundred two".