1223450011154 has 16 divisors (see below), whose sum is σ = 2098262414976. Its totient is φ = 524105834400.

The previous prime is 1223450011141. The next prime is 1223450011211. The reversal of 1223450011154 is 4511100543221.

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, 19123982 + ... + 19187849.

It is an arithmetic number, because the mean of its divisors is an integer number (131141400936).

Almost surely, 2^{1223450011154} is an apocalyptic number.

1223450011154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1223450011154 is a deficient number, since it is larger than the sum of its proper divisors (874812403822).

1223450011154 is a wasteful number, since it uses less digits than its factorization.

1223450011154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38314121.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 1223450011154 its reverse (4511100543221), we get a palindrome (5734550554375).

The spelling of 1223450011154 in words is "one trillion, two hundred twenty-three billion, four hundred fifty million, eleven thousand, one hundred fifty-four".