121400311054 has 16 divisors (see below), whose sum is σ = 198660452400. Its totient is φ = 55180460160.

The previous prime is 121400311003. The next prime is 121400311061. The reversal of 121400311054 is 450113004121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent 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, 1384132 + ... + 1469224.

It is an arithmetic number, because the mean of its divisors is an integer number (12416278275).

Almost surely, 2^121400311054 is an apocalyptic number.

121400311054 is a deficient number, since it is larger than the sum of its proper divisors (77260141346).

121400311054 is a wasteful number, since it uses less digits than its factorization.

121400311054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149955.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 121400311054 its reverse (450113004121), we get a palindrome (571513315175).

The spelling of 121400311054 in words is "one hundred twenty-one billion, four hundred million, three hundred eleven thousand, fifty-four".