1121860154041 has 9 divisors (see below), whose sum is σ = 1233131818863. Its totient is φ = 1019862275520.

The previous prime is 1121860154029. The next prime is 1121860154047. The reversal of 1121860154041 is 1404510681211.

The square root of 1121860154041 is 1059179.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 666882923641 + 454977230400 = 816629^2 + 674520^2 .

It is not a de Polignac number, because 1121860154041 - 2¹⁵ = 1121860121273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121860153988 and 1121860154006.

It is not an unprimeable number, because it can be changed into a prime (1121860154047) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11602825 + ... + 11699113.

Almost surely, 2^{1121860154041} is an apocalyptic number.

1121860154041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121860154041 is the 1059179-th square number.

1121860154041 is the 529590-th centered octagonal number.

It is an amenable number.

1121860154041 is a deficient number, since it is larger than the sum of its proper divisors (111271664822).

1121860154041 is an frugal number, since it uses more digits than its factorization.

1121860154041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192600 (or 96300 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 34.

The spelling of 1121860154041 in words is "one trillion, one hundred twenty-one billion, eight hundred sixty million, one hundred fifty-four thousand, forty-one".