11131530145402 has 16 divisors (see below), whose sum is σ = 17693851012992. Its totient is φ = 5234111732160.

The previous prime is 11131530145343. The next prime is 11131530145447. The reversal of 11131530145402 is 20454103513111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132938628 + ... + 133022335.

It is an arithmetic number, because the mean of its divisors is an integer number (1105865688312).

Almost surely, 2^{11131530145402} is an apocalyptic number.

11131530145402 is a deficient number, since it is larger than the sum of its proper divisors (6562320867590).

11131530145402 is a wasteful number, since it uses less digits than its factorization.

11131530145402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265962213.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 11131530145402 its reverse (20454103513111), we get a palindrome (31585633658513).

The spelling of 11131530145402 in words is "eleven trillion, one hundred thirty-one billion, five hundred thirty million, one hundred forty-five thousand, four hundred two".