1461111820042 has 16 divisors (see below), whose sum is σ = 2510887245120. Its totient is φ = 624659748768.

The previous prime is 1461111820031. The next prime is 1461111820043. The reversal of 1461111820042 is 2400281111641.

It is a junction number, because it is equal to n+sod(n) for n = 1461111819986 and 1461111820013.

It is not an unprimeable number, because it can be changed into a prime (1461111820043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127580008 + ... + 127591459.

It is an arithmetic number, because the mean of its divisors is an integer number (156930452820).

Almost surely, 2^{1461111820042} is an apocalyptic number.

1461111820042 is a deficient number, since it is larger than the sum of its proper divisors (1049775425078).

1461111820042 is a wasteful number, since it uses less digits than its factorization.

1461111820042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255171885.

The product of its (nonzero) digits is 3072, while the sum is 31.

Adding to 1461111820042 its reverse (2400281111641), we get a palindrome (3861392931683).

The spelling of 1461111820042 in words is "one trillion, four hundred sixty-one billion, one hundred eleven million, eight hundred twenty thousand, forty-two".