1023211054551 has 8 divisors (see below), whose sum is σ = 1559178749824. Its totient is φ = 584692031160.

The previous prime is 1023211054549. The next prime is 1023211054583. The reversal of 1023211054551 is 1554501123201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1023211054551 - 2¹ = 1023211054549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023211054511) 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, 24362167945 + ... + 24362167986.

It is an arithmetic number, because the mean of its divisors is an integer number (194897343728).

Almost surely, 2^{1023211054551} is an apocalyptic number.

1023211054551 is a deficient number, since it is larger than the sum of its proper divisors (535967695273).

1023211054551 is an equidigital number, since it uses as much as digits as its factorization.

1023211054551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48724335941.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 1023211054551 its reverse (1554501123201), we get a palindrome (2577712177752).

The spelling of 1023211054551 in words is "one trillion, twenty-three billion, two hundred eleven million, fifty-four thousand, five hundred fifty-one".