1131421444402 has 32 divisors (see below), whose sum is σ = 1752342970752. Its totient is φ = 547547745024.

The previous prime is 1131421444367. The next prime is 1131421444423. The reversal of 1131421444402 is 2044441241311.

It is a super-2 number, since 2×1131421444402² (a number of 25 digits) contains 22 as substring.

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, 60699028 + ... + 60717664.

It is an arithmetic number, because the mean of its divisors is an integer number (54760717836).

Almost surely, 2^{1131421444402} is an apocalyptic number.

1131421444402 is a deficient number, since it is larger than the sum of its proper divisors (620921526350).

1131421444402 is a wasteful number, since it uses less digits than its factorization.

1131421444402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25042.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 1131421444402 its reverse (2044441241311), we get a palindrome (3175862685713).

The spelling of 1131421444402 in words is "one trillion, one hundred thirty-one billion, four hundred twenty-one million, four hundred forty-four thousand, four hundred two".