111420121231002 has 32 divisors (see below), whose sum is σ = 223072289928000. Its totient is φ = 37101367186688.

The previous prime is 111420121230959. The next prime is 111420121231009. The reversal of 111420121231002 is 200132121024111.

It is a self number, because there is not a number n which added to its sum of digits gives 111420121231002.

It is not an unprimeable number, because it can be changed into a prime (111420121231009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418583749 + ... + 418849847.

It is an arithmetic number, because the mean of its divisors is an integer number (6971009060250).

Almost surely, 2^{111420121231002} is an apocalyptic number.

111420121231002 is an abundant number, since it is smaller than the sum of its proper divisors (111652168696998).

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

111420121231002 is a wasteful number, since it uses less digits than its factorization.

111420121231002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338510.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 111420121231002 its reverse (200132121024111), we get a palindrome (311552242255113).

The spelling of 111420121231002 in words is "one hundred eleven trillion, four hundred twenty billion, one hundred twenty-one million, two hundred thirty-one thousand, two".