10133121402 has 24 divisors (see below), whose sum is σ = 22548478836. Its totient is φ = 3286417536.

The previous prime is 10133121389. The next prime is 10133121409. The reversal of 10133121402 is 20412133101.

10133121402 is a `hidden beast` number, since 10 + 133 + 121 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10098441081 + 34680321 = 100491^2 + 5889^2 .

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 (10133121409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7606783 + ... + 7608114.

Almost surely, 2^10133121402 is an apocalyptic number.

10133121402 is an abundant number, since it is smaller than the sum of its proper divisors (12415357434).

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

10133121402 is a wasteful number, since it uses less digits than its factorization.

10133121402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15214942 (or 15214939 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10133121402 its reverse (20412133101), we get a palindrome (30545254503).

The spelling of 10133121402 in words is "ten billion, one hundred thirty-three million, one hundred twenty-one thousand, four hundred two".