1151443421401 has 32 divisors (see below), whose sum is σ = 1421792305920. Its totient is φ = 908058691584.

The previous prime is 1151443421399. The next prime is 1151443421407. The reversal of 1151443421401 is 1041243441511.

It is a cyclic number.

It is not a de Polignac number, because 1151443421401 - 2¹ = 1151443421399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1151443421407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47739921 + ... + 47764033.

It is an arithmetic number, because the mean of its divisors is an integer number (44431009560).

Almost surely, 2^{1151443421401} is an apocalyptic number.

It is an amenable number.

1151443421401 is a deficient number, since it is larger than the sum of its proper divisors (270348884519).

1151443421401 is a wasteful number, since it uses less digits than its factorization.

1151443421401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25825.

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 1151443421401 its reverse (1041243441511), we get a palindrome (2192686862912).

The spelling of 1151443421401 in words is "one trillion, one hundred fifty-one billion, four hundred forty-three million, four hundred twenty-one thousand, four hundred one".