11430121042 has 32 divisors (see below), whose sum is σ = 18643968000. Its totient is φ = 5235613200.

The previous prime is 11430121039. The next prime is 11430121057. The reversal of 11430121042 is 24012103411.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 1998567 + ... + 2004277.

It is an arithmetic number, because the mean of its divisors is an integer number (582624000).

Almost surely, 2^11430121042 is an apocalyptic number.

11430121042 is a deficient number, since it is larger than the sum of its proper divisors (7213846958).

11430121042 is a wasteful number, since it uses less digits than its factorization.

11430121042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7462.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11430121042 its reverse (24012103411), we get a palindrome (35442224453).

The spelling of 11430121042 in words is "eleven billion, four hundred thirty million, one hundred twenty-one thousand, forty-two".