Search a number
BaseRepresentation
bin10000010100000010110…
…001101000100110000101
310222011120201102101202122
4100110002301220212011
5121331333423430041
62214555004215325
7143664146350532
oct20240261504605
93864521371678
101121033030021
113a2477a13833
1216131b83a545
13819364b6278
143c388a57d89
151e262274c4b
hex10502c68985

1121033030021 has 8 divisors (see below), whose sum is σ = 1191027267864. Its totient is φ = 1051488916480.

The previous prime is 1121033030011. The next prime is 1121033030081. The reversal of 1121033030021 is 1200303301211.

Adding to 1121033030021 its reverse (1200303301211), we get a palindrome (2321336331232).

It can be written as a sum of positive squares in 4 ways, for example, as 289270789921 + 831762240100 = 537839^2 + 912010^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1121033030021 - 226 = 1120965921157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121033030011) 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, 112525940 + ... + 112535901.

It is an arithmetic number, because the mean of its divisors is an integer number (148878408483).

Almost surely, 21121033030021 is an apocalyptic number.

It is an amenable number.

1121033030021 is a deficient number, since it is larger than the sum of its proper divisors (69994237843).

1121033030021 is a wasteful number, since it uses less digits than its factorization.

1121033030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225062151.

The product of its (nonzero) digits is 108, while the sum is 17.

The spelling of 1121033030021 in words is "one trillion, one hundred twenty-one billion, thirty-three million, thirty thousand, twenty-one".