11312121002 has 32 divisors (see below), whose sum is σ = 21604060800. Its totient is φ = 4320808128.

The previous prime is 11312120993. The next prime is 11312121017. The reversal of 11312121002 is 20012121311.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 1066352 + ... + 1076907.

It is an arithmetic number, because the mean of its divisors is an integer number (675126900).

Almost surely, 2^11312121002 is an apocalyptic number.

11312121002 is a deficient number, since it is larger than the sum of its proper divisors (10291939798).

11312121002 is a wasteful number, since it uses less digits than its factorization.

11312121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143310.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11312121002 its reverse (20012121311), we get a palindrome (31324242313).

The spelling of 11312121002 in words is "eleven billion, three hundred twelve million, one hundred twenty-one thousand, two".